Search Results — 2000 specimen records retrieved (1330 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  LA35665  Abies bracteata Rimo Bacigalupi; 1960-4-4 7360 Contra Costa Santa Lucia Mts, Wildcat Canyon, Berkely Hills, on short side of road to corporation yard 297 Comment
  UC1187354  Abies bracteata Rimo Bacigalupi 1960-4-4 7360 Contra Costa w slopes of upper Wildcat Canyon ((on short side of road toi corporation yard)); Tilean Regional Park, Berkeley Hills 297 Comment
Read comments
1
  UCR263553  Acacia cyclops Barbara Ertter 1990-10-14 9660 Contra Costa San Francisco Bay Region, Point Isabel Regional Shoreline on San Francisco Bay in southwest El Cerrito, at end of Rydin Road 5 Comment
  JEPS112392  Acacia dealbata Dean G. Kelch and Andrew G. Murdock 2005-5-13 05 .232 Contra Costa Crockett; County: Contra Costa; West Crockett, below Dead Fish Restaurant along Carquinez Straight. Comment
  UC1719693  Acacia longifolia Barbara Ertter, Brad Olson 1994-5-7 12743 Contra Costa S end of Point Molate Beach Park, edge of San Francisco Bay N of Richmond to San Rafael bridge Comment
  UC1050368  Acacia verticillata N. Floy Bracelin 1942-7-4 2172 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC436988  Acaena pinnatifida var. californica H. M. Hall 1901-3-17 1655 Contra Costa Point Richmond Comment
  UC12000  Acaena pinnatifida var. californica H. M. Hall 1901-3-16 1655 Contra Costa Point Richmond Region of San Francisco Bay, Point Richmond Comment
  UC1050843  Acanthus mollis var. latifolius N. Floy Bracelin 1942-6-14 2133 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS111582  Acer macrophyllum D. G. Kelch 2004-4-25 04 .109 Contra Costa Martinez - West: Ozol Rock and Scenic Drive West Martinez on Scenic Dr. at Road Gate 28 Comment
  UC1050118  Acer macrophyllum N. Floy Bracelin 1942-3-15 1967 Contra Costa Adelante, Tthe Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050967  Acer macrophyllum N. Floy Bracelin 1941-4-8 2647 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  SBBG27295  Acer negundo A. Carter 1937-4-4 1229 Contra Costa Moraga Valley, 2.5 mi N of Moraga 182 Comment
  UC1199010  Acer negundo Joseph P. Tracy 1934-4-30 13187 Contra Costa Lafayette 152 Comment
  POM247254  Acer negundo subsp. californicum Annetta Carter 1937-3-28 1227 Contra Costa Moraga Valley, 2 1/2 miles north of Moraga 183 Comment
  POM284638  Acer negundo subsp. californicum Lyman D. Benson 1931-3-18 2656 Contra Costa Walnut Creek. 61 Comment
  UC1050367  Acer palmatum N. Floy Bracelin 1942-7-4 2183 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1948954  Achillea millefolium William J. Ferlatte, L. Maynard Moe 1970-4-27 1227 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC1301058  Achyrachaena mollis Helen K. Sharsmith 1963-4-7 5298 Contra Costa near Byron; San Francisco Bay 7 Comment
  UC134230  Achyrachaena mollis Katharine Brandegee 1907-5-3 Contra Costa near Antioch Comment
  HSC4584  Achyrachaena mollis Greg Bos 1963-4-28 98 Contra Costa Pinole hills overlooking San Pablo Bay 46 Comment
  JEPS111513  Acmispon glaber Dean G. Kelch and Andrew G. Murdock 2005-5-13 05 .276 Contra Costa Martinez - West: Ozol Rock and Scenic Drive. Comment
  JEPS112367  Acmispon wrangelianus Dean G. Kelch and Andrew G. Murdock 2004-3-19 222 Contra Costa Luzon; County: Contra Costa; Sycamore Ave. just east of Rodeo / Hercules where train crosses Highway 4 (Luzon). Top of ridge to south of road. Comment
  JEPS112409  Acmispon wrangelianus Dean G. Kelch and Andrew G. Murdock 2005-4-15 05 .152b Contra Costa Rodeo Creek; county: Contra Costa; EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  CDA37430  Acroptilon repens D. G. Kelch, Mike Perlmutter 2011-9-23 11 .752 Contra Costa Immediately north of Discovery Bay. Comment
  RSA453156  Adenostoma fasciculatum var. fasciculatum Bonnie C. Templeton 1962-6-20 s.n. Contra Costa Mount Diablo Comment
  CDA42502  Adiantum jordanii D. G. Kelch 2005-1-21 5 .006 Contra Costa Carquinez Strait; Crockett. Along railroad tracks in West Valona across from decommissioned sewage treatment plant. Comment
  CDA42503  Adiantum jordanii A. G. Murdock 2004-2-12 206 Contra Costa Franklin Canyon - McHarry Ranch Road. Comment
  SEINET12232133  Aesculus californica M. T. Dorett 1930-1 77 Contra Costa Marsh Creek Comment
  JEPS99561  Agoseris grandiflora Mary Bowerman 1995-7-2 Contra Costa Mount Diablo, (probably Back Canyon or foot trail to Donner Canyon). Comment
  UCD36920  Agoseris grandiflora Beecher Crampton 1956-5-14 3400 Contra Costa Mount Diablo, south of Windy Point. Comment
  UC1125464  Agoseris grandiflora var. grandiflora C. M. Belshaw 1936-5-12 2102 Contra Costa 2 mi ese of Mt. Diablo; Mt. Diablo Quadrangle 335 Comment
  UC691795  Agoseris heterophylla var. heterophylla Mary L. Bowerman 1934-3-18 2482 Contra Costa west of, (in small open flat on the edge of Donner Canyon) Russelman Park; Donner Canyon 365 Comment
  POM319553  Agrostis Patricia Wilder 1961-8-27 1066 Contra Costa Walnut Creek, near Calif. Hwy 24. 24 Stanley Court. 42 Comment
  UCD92546  Agrostis Beecher Crampton 1959-9-3 5454 Contra Costa Cleared bed of Bear Creek, about 2 miles north of Orinda. Comment
  CHSC116630  Agrostis avenacea Lowell Ahart; Josephine Guardino 2016-4-19 20787 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Below the high water line of Los Vaqueros Reservoir, 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  RSA0033846  Agrostis exarata Barbara Ertter 1999-7-17 16763 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Rifle Range Road. Comment
  UC2028527  Agrostis exarata Barbara Ertter 1997-11-1 15884 Contra Costa South side Mount Diablo, end of spur road east of Knobcone Point, below powerline crossing at head of Alamo Creek drainage. Comment
  CDA42431  Agrostis hallii D. G. Kelch 2012-6-9 12 .092 Contra Costa Carquinez Strait Region; East of Crockett; Bull Valley Trail. Comment
  RSA0029361  Agrostis hallii Barbara Ertter 1996-11-24 15416 Contra Costa Southwest side of Mount Diablo, Wall Point Road across Pine Ridge ca. 0.5 air mi ENE of Macedo Ranch. Comment
  CDA31463  Agrostis pallens D. G. Kelch 2006-6-3 6 .22 Contra Costa 2 km N-NW of Orinda Village. NW of corner of San Pablo Dam Rd & Bear Valley Rd. Comment
  UC692385  Agrostis viridis Mary L. Bowerman 1933-11-4 2462 Contra Costa Alder Creek Springs Mount Diablo 487 Comment
  UC2028230  Ailanthus altissima Barbara Ertter 1998-11-15 16466 Contra Costa North side Mount Olympia on north side Mount Diablo Comment
  JEPS99483  Aira caryophyllea Mary Bowerman 1978-5-14 Contra Costa Mount Diablo, Eagle Peak Old Mines trail. Comment
  RSA151831  Aira caryophyllea Leo Koch, Brian Koch 1947-4-20 1343 Contra Costa between golf course and railroad, 0.5 mile south of Giant. 3 Comment
  UCD55707  Aira caryophyllea Beecher Crampton 1955-4-11 2471 Contra Costa Richmond, vacant lots of 41st St. and Bissell. Comment
  UC2028078  Aira caryophyllea var. caryophyllea Barbara Ertter, Tony Morosco 1998-4-12 15992 Contra Costa Base of Mount Olympia on north side of Mount Diablo, base of quarry NE of Olympia Trail. Comment
  UCR197913  Alisma triviale Beecher Crampton 1950-6-10 589 Contra Costa 1 mile north of Richmond, along Santa Fe Railroad 15 Comment
  NY216671  Allenrolfea occidentalis R. F. Hoover 1937-8-31 2707 Contra Costa Byron Hot Springs. Comment
  UC116547  Allenrolfea occidentalis K. Brandegee 1885-1 Contra Costa near Antioch Antioch Comment
  CAS-BOT-BC175363  Allenrolfea occidentalis E. E. Stanford 1930-8-1 1871 Contra Costa Near Old River Comment
  UC3090  Allium acuminatum Edw. L. Greene 1892-1 Contra Costa Mt. Diablo Comment
  SD39067  Allium amplectens McCallum 1933-4-24 3715 Contra Costa Top of hill between Walnut Creek and Berkeley. Comment
  CAS-BOT-BC466766  Allium crispum Ira L. Wiggins 1930-4-17 4565 Contra Costa Hillsides near Mountain House, Altamont Pass Comment
  RSA70452  Allium falcifolium L. S. Rose 1935-5-16 35164 Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC469110  Allium falcifolium Paul F. Covel 1936-5-17 126 Contra Costa Summit Mt. Diablo Comment
  CAS-BOT-BC469111  Allium falcifolium L. R. Abrams 1921-5-25 2038 Contra Costa Summit Mt. Diablo Comment
  CAS-BOT-BC469114  Allium falcifolium Alice Eastwood 1915-5-30 s.n. Contra Costa Mt. Diablo Comment
  RSA178598  Allium falcifolium Le Roy Abrams 1921-5-25 8038 Contra Costa Summit, Mount. Diablo. Comment
  RSA26408  Allium falcifolium J. T. Howell 1941-4-6 16179 Contra Costa Ridge east of Deer Park, Mt. Diablo Comment
  JEPS112489  Allium neapolitanum D. G. Kelch 2004-4-11 04 .73 Contra Costa Crockett - Crolona Heights Hillside above Rolf Drive. Lower Crolona heights 15 Comment
  CAS-BOT-BC475539  Allium serra Reed C. Rollins 1946-3-25 3043 Contra Costa Western slope of Mount Diablo Comment
  UC2013015  Allium serra Barbara Ertter 1991-5-5 9782 Contra Costa Black Diamond Mines Regional Preserves S of Pittsburg, N-facing slope below Black Diamond Trail in SW corner of park. Comment
  SEINET12044784  Allium serratum J. T. Howell 1933-1 11284 Contra Costa E of St. Mary's College Comment
  JEPS112494  Allium unifolium D. G. Kelch 2005-4-15 05 .133 Contra Costa Rodeo Creek East-West canyon feeding into Rodeo Creek 120 Comment
  UC692024  Allium unifolium Mary L. Bowerman 1935-5-18 3019 Contra Costa nw-facing slope across the road from and a little e parking area; Mt. Diablo 1066 Comment
  CAS-BOT-BC476606  Allium unifolium Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mt. Diablo Comment
  SEINET3151683  Allocarya trachycarpa L. S. Rose 1936-4-24 36151 Contra Costa 10 miles S of Antioch 30 Comment
  UC691644  Allophyllum divaricatum Mary L. Bowerman 1933-4-26 1907 Contra Costa North Peak ridge e.-s.e of peak Mt. Diablo 609 Comment
  JEPS108359  Allophyllum gilioides David Gowen 2005-4-11 229 Contra Costa Mt. Diablo State Park. Below Devils Elbow in the upper part of Rhine Canyon drainage. Comment
  UC30193  Allophyllum gilioides subsp. violaceum H. N. Bolander April 1866 6397 Contra Costa Monte Diablo Comment
  UC908964  Allophyllum gilioides subsp. violaceum R. F. Hoover 1939-4-13 4022 Contra Costa head of Markley Canyon (w. branch) Comment
  JEPS68944  Alnus rhombifolia Edward Lee 1935-2-10 1272 Contra Costa Wildcat Creek Berkeley, Berkeley Hills Comment
  UC1093922  Alnus rhombifolia Herbert L. Mason 1924-11-23 1159 Contra Costa Las Trampas Ridge; via Cashion Comment
  UC13501  Alnus rhombifolia W. C. Blasdale 1891-3-7 Contra Costa San Pablo Comment
  UC692033  Alnus rhombifolia Mary L. Bowerman 1930-8-24 421 Contra Costa Mitchell Canyon Mount Diablo Comment
  JEPS113358  Alopecurus myosuroides Bob Battagin 2007-3-9 Contra Costa San Pablo Reservoir, W shore. Comment
  CDA20558  Alternanthera philoxeroides unknown 2005-6-23 s.n. Contra Costa San Francisco Bay Area; Garden weed in Danville, CA. 0 Comment
  SEINET7085231  Althaea cannabina Steven R. Hill 2010-7-19 38532 Contra Costa Residence of Kristin Yanker-Hansen, 569 Contada Circle, Danville [94526]. Coordinate Datum: WGS84/NAD83. 122 Comment
  UC2027846  Amaranthus albus Barbara Ertter, Mary Bowerman 1996-11-1 15402 Contra Costa North base of Mount Diablo, near Donner Canyon trailhead at end of Regency Drive. Comment
  CAS-BOT-BC55589  Ambrosia psilostachya Walter Knight; Joanne Dean 1978-8-14 3115 Contra Costa Browns Island Comment
  JEPS102911  Ammannia coccinea Lisa Schultheis with Kevin Hintsa 1995-8-20 260 -95 Contra Costa Macedo Ranch, N edge, near house Mount Diablo Comment
  CAS-BOT-BC222229  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2141 Contra Costa Somersville Comment
  RSA0090926  Amsinckia eastwoodiae A. A. Heller 1941-3-24 15906 Contra Costa Byron Springs. Comment
  SEINET11792519  Amsinckia grandiflora P. Del Monte 1976-1 Contra Costa Comment
  CDA29055  Amsinckia intermedia D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .225 Contra Costa Byron Airport. Comment
  UC1084555  Amsinckia intermedia Francia Chisaki, Peter M. Ray 1952-5-4 2274 Contra Costa 0.7 mi west of Inspiration Point (and road e to; and Orinda-Richmond Road); Tilden Park Comment
  UC1618223  Amsinckia intermedia Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8130 Contra Costa ca. 15 air mi. s.w. Stockton (w. and adjacent to Clifton Court Forebay) Comment
  UC725369  Amsinckia intermedia A. A. Heller 1938-4-9 15014 Contra Costa in an orchard near Walnut Creek Comment
  RSA31867  Amsinckia intermedia A. A. Heller 1938-4-9 15014 Contra Costa In an orchard near Walnut Creek. Comment
  UC1073066  Amsinckia intermedia Helen K. Sharsmith 1954-3-24 4410 Contra Costa e of Mount Diablo (Canyon slope back of Nortonville Mines); Inner South Coast Ranges 304 Comment
  CAS-BOT-BC222465  Amsinckia lunaris Robert F. Hoover 1939-4-24 4058 Contra Costa Lower end of San Pablo Reservoir Comment
  RSA125789  Amsinckia lunaris Francia Chisaki, Peter Kamb 1952-5-4 2275 Contra Costa Bear Creek Road, 1.5 miles east of Orinda-Richmond road (leaving this road ca. 1 mile north of Orinda) Comment
  UC1084623  Amsinckia lunaris Francia Chisaki, Peter Kamb Ray 1952-5-4 2275 Contra Costa 1.5 mi e Orinda-Richmond road (leaving this road ca 1 mi n of Orinda); Bear Creek Road Comment
  UC525560  Amsinckia lunaris Joseph P. Tracy 1934-4-30 13196 Contra Costa near Lafayette; Coast Ranges 152 Comment
  JEPS25354  Amsinckia lycopsoides Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6964 Contra Costa 1.9 mi w Byron (at road summit along Camino Diablo) 54 Comment
  SD71393  Amsinckia lycopsoides John Thomas Howell 1933-5-14 11225 Contra Costa St. Mary's College Comment
  CAS-BOT-BC26957  Amsinckia sparsiseta Alice Eastwood 1914-3-14 3796 Contra Costa Byron Springs Comment
  CAS-BOT-BC26962  Amsinckia strigosa Alice Eastwood 1914-3-14 3773 Contra Costa Byron Springs Comment
  RSA0091254  Amsinckia tessellata Ira L. Wiggins 1930-4-17 4558 Contra Costa Roadside 1 mi. E of Mountain House on road to Byron. Comment
  UC78256  Amsinckia tessellata var. tessellata K. Brandegee 1892-5-1 Contra Costa Antioch Comment
  CDA15263  Anagallis arvensis G. F. Hrusa, D. Crowe 1998-5-8 14394 Contra Costa Sacramento Delta; at E end of Dow Chemical property in Pittsburg. Comment
  UC2070515  Ancistrocarphus filagineus Barbara Ertter with Dan Norris 2001-4-8 17586 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  UC691814  Ancistrocarphus filagineus Mary L. Bowerman 1936-4-23 3407 Contra Costa flat below, (upper edge 1778 flat) Moses Rock Spring; Mount Diablo Comment
  JEPS108327  Androsace elongata subsp. acuta David Gowen, Mike Parks 2005-3-6 177 Contra Costa Mt. Diablo State Park. North-facing slope not far from summit of Oyster Point. Comment
  CAS-BOT-BC400259  Anemopsis californica Rimo Bacigalupi 1926-4-30 1347 Contra Costa About 3 miles east of Walnut Creek on Mt Diablo Road Comment
  JEPS12260  Anemopsis californica W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mount Diablo Comment
  POM169016  Anemopsis californica A. D. E. Elmer 1903-06 4870 Contra Costa Walnut Creek Comment
  UC1594182  Anthemis cotula Jerry Powell 1992-6-17 1692 Contra Costa Richmond Field Station Comment
  NY67842  Antirrhinum elmeri A. D. E. Elmer 06 1903 4809 Contra Costa Mt. Diablo Comment
  UC691615  Antirrhinum kelloggii Mary L. Bowerman 1933-4-26 1919 Contra Costa ese of North Peak (North Peak ridge, s-face); Mount Diablo 609 Comment
  SBBG33408  Antirrhinum vexillocalyculatum A. D. E. Elmer -Jun-1903 4809 Contra Costa Mount Diablo Comment
  UC306602  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum A. D. E. Elmer Jun 1903 4809 Contra Costa Mount Diablo; ; Mt. Diablo, Contra Costa Co. Comment
  UC2029063  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Barbara Ertter 2000-7-29 17447 Contra Costa Donner Basin on north side of Mount Diablo, Cardinet Oaks Road at junction with Falls Trail. Comment
  UC2032826  Aphanes arvensis Doran, Andrew Scott 2012-3-20 696 Contra Costa Second highest point on Brooks Island below rocky outcrop Comment
  JEPS112070  Aphanes occidentalis A. G. Murdock 2004-3-5 212 Contra Costa Sky Ranch At top of ridge along road 250 Comment
  UC12043  Aphanes occidentalis Jos. Burtt Davy 1901-4-21 6927 Contra Costa Wildcat Canyon Comment
  UC12054  Aphanes occidentalis F. T. Bioletti 1892-4-8 Contra Costa Byron Comment
  UC1789149  Aphanes occidentalis Barbara Ertter with David Gowen and Mike Park 2004-4-13 18347 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, ca 1 km due east of Sidney Flat headquarters Comment
  UC691119  Aphanes occidentalis Mary L. Bowerman 1931-3-29 620 Contra Costa East Cave Point Ridge; Mount Diablo Comment
  CDA15262  Apocynum cannabinum G. F. Hrusa, D. Crowe 1998-5-8 14393 Contra Costa Sacramento Delta; Along Antioch-Pittsburg highway adjacent to E end of Dow Chemical property in Pittsburg. Comment
  CDA39735  Apocynum cannabinum D. G. Kelch 2004-7-9 4 .306 Contra Costa Carquinez Strait; Alhambra Creek, Martinez, near Muir gravesite, Arroyo del Hambre. Comment
  UC2029068  Aquilegia eximia Barbara Ertter 2000-7-29 17436 Contra Costa Donner Basin on north side of Mount Diablo, Middle Trail below Falls Trail junction, at crossing of W Fork Donner Creek, with Berberis, shaded, surface water. Comment
  CAS-BOT-BC392088  Aquilegia formosa John Thomas Howell 1933-5-14 11253 Contra Costa Hills east of St. Mary's College Comment
  UC692088  Aquilegia formosa Mary L. Bowerman 1935-5-18 3021 Contra Costa across the rd and a little east from the parking area Mount Diablo 1066 Comment
  UCD95520  Aquilegia formosa Collector unknown Date unknown s.n. Contra Costa On ridge to west of Franklin Canyon (Central). 274 Comment
  CAS-BOT-BC17272  Arabis blepharophylla Paul F. Covel 1938-5-8 1514 Contra Costa Summit Mount Diablo. Comment
  RSA0125527  Arabis breweri L. S. Rose 1935-5-16 35170 Contra Costa Mt. Diablo, Summit. Comment
  UCSC000302  Arabis breweri Carl Meyer 1928-2-22 283 Contra Costa Mount Diablo Comment
  UC2028457  Aralia californica Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17513 Contra Costa North side of Mount Diablo, Big Spring below Prospectors Gap Road at head of Donner Canyon Comment
  UCSB11594  Arbutus menziesii Grah, Nancy 1962-4-20 Contra Costa 2.0 miles east of San Pablo Dam on Wildcat Canyon Road, 4 miles east of Berkeley 274 Comment
  CAS-BOT-BC407800  Arceuthobium campylopodum L. R. Abrams 1910-10-8 4356 Contra Costa Mt. Diablo Comment
  UC615582  Arceuthobium campylopodum Beryl O. Schreiber 1933-10-5 937 Contra Costa rd to Mt Diablo Comment
  RSA721736  Arceuthobium occidentale Barbara Ertter, Mary L. Bowerman, Lisa Schultheis, Kevin Hintsa 1995-10-22 14533 Contra Costa Three Springs Trail on northeast side of Mt Diablo, wood above ranch. 366 Comment
  JEPS98884  Arctostaphylos R. Gankin, J. Roof, R. Hildreth, R. Brewer, W. and I. Knight 1964-10-7 Contra Costa nature trail, head of Dan Cook Canyon Mount Diablo Comment
  CAS-BOT-BC24120  Arctostaphylos auriculata Alice Eastwood 1922-3-17 11083 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC24123  Arctostaphylos auriculata Brandegee 1889-1-1 s.n. Contra Costa Antioch Comment
  CHSC39444  Arctostaphylos auriculata B. A. Stein 1981-3-21 460 Contra Costa Mt. Diablo State Park, Rock City Campgound. 457 Comment
  JEPS38914  Arctostaphylos auriculata Mary L. Bowerman 1935-3-24 2751 Contra Costa w face Lime Ridge (between two cuts of the Cowell Cement Company); Mount Diablo Comment
  JEPS38915  Arctostaphylos auriculata Mary L. Bowerman 1932-2-13 1086 Contra Costa on ridge between main forks of canyon Mount Diablo; , Alamo Canyon Comment
  POM131658  Arctostaphylos auriculata Alice Eastwood 1903-2-22 3161 Contra Costa Mt Diablo Comment
  POM316531  Arctostaphylos auriculata Mary L. Bowerman 1932-1-23 1075 (Duplicate) Contra Costa Sycamore Canyon, east fork: East edge of chaparral near canyon bottom. Comment
  RSA388864  Arctostaphylos auriculata H. A. Stout, TC Wainwright 1980-3-27 2 Contra Costa Mallory Ranch, ca. 1 mile east of Morgan Territory Road. 609 Comment
  RSA622486  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27597 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  SBBG28871  Arctostaphylos auriculata L. S. Rose 1934-2-28 34039 Contra Costa S slope of Mt Diablo, 8 mi NE of Danville Comment
  UC1120857  Arctostaphylos auriculata H. A. Jensen 1938-10-27 455 Contra Costa head of Sycamore Creek Mt. Diablo Quadrangle 518 Comment
  UC1120858  Arctostaphylos auriculata H. A. Jensen 1938-10-27 450 Contra Costa head of Curry Canyon Mt. Diablo Quadrangle Comment
  UC1309702  Arctostaphylos auriculata H. A. Jensen 1938-10-27 450 Contra Costa head of Curry Canyon Mt. Diablo 518 Comment
  UC549567  Arctostaphylos auriculata J. E. Adams 1934-3-19 678 Contra Costa Mt. Diablo Comment
  UC75346  Arctostaphylos auriculata Alice Eastwood 1903-2-22 3161 Contra Costa Mt. Diablo Comment
Read comments
Aug 25 2011
  UCD50259  Arctostaphylos auriculata H. A. Stout; T. C. Wainwright 1980-3-27 Contra Costa Mallory Ranch, ca. 1 mile east of Morgan Territory Road. 609 Comment
  UCD50262  Arctostaphylos auriculata Roman Gankin 1968-11-14 1311 Contra Costa Ca. 300 yds. above road at Somersville. Comment
  UCD50263  Arctostaphylos auriculata Roman Gankin 1968-11-14 1310 Contra Costa Ca. 300 yds. above the road at Somersville. Comment
  UC2028008  Arctostaphylos auriculata Barbara Ertter with Amy Rusev 1998-1-17 15895 Contra Costa Lime Ridge Open Space at NW foot of Mount Diablo. Comment
  CAS-BOT-BC23552  Arctostaphylos crustacea Neil Havlik; Walter Knight 1982-11-12 4548 Contra Costa Briones Regional Park adjacent to russell Tree Farm. 327 Comment
  CAS-BOT-BC23556  Arctostaphylos crustacea Lewis S. Rose 1954-3-1 54004 Contra Costa Oakland Hills above Redwood Canyon 609 Comment
  CAS-BOT-BC23558  Arctostaphylos crustacea C. Hart Merriam 1919-11-2 s.n. Contra Costa Hill above Moraga Valley Comment
  CAS-BOT-BC23559  Arctostaphylos crustacea John Thomas Howell 1952-3-2 28297 Contra Costa East end of Moraga Ridge summit Comment
  JEPS46405  Arctostaphylos glandulosa W. L. Jepson 1919-1-25 9209 Contra Costa Moraga Ridge Comment
  CAS-BOT-BC24860  Arctostaphylos glandulosa subsp. cushingiana Walter Knight; Irja Knight 1980-3-16 3716 Contra Costa Sobrante Ridge between Heavenly Ridge Lane and Castro Ranch Road, El Sobrante. Comment
  CAS-BOT-BC24808  Arctostaphylos glandulosa subsp. glandulosa C. Hart Merriam 1919-8-24 s.n. Contra Costa Las Trampas Peak. Comment
  CAS-BOT-BC24809  Arctostaphylos glandulosa subsp. glandulosa Paul F. Covel 1938-2-20 1113 Contra Costa Moraga Ridge above Pinehurst. Comment
  JEPS81633  Arctostaphylos glandulosa subsp. glandulosa Roger Raiche 1982-1-1 20043 Contra Costa near Grizzly Peak; Claremont Canyon Comment
  SBBG5419  Arctostaphylos glandulosa subsp. mollis J. M. Tucker 1941-9-26 409 Contra Costa summit of Moraga Ridge 500 Comment
Read comments
Sep 13 2011
  CAS-BOT-BC24654  Arctostaphylos glauca Mary L. Bowerman 1930-6-22 362 Contra Costa Mount Diablo, Mitchell Canyon. Comment
  POM367324  Arctostaphylos glauca Mark Morris 1929-03 14911 Contra Costa Mt. Diablo. Comment
  UC692233  Arctostaphylos glauca Mary L. Bowerman 1933-9-30 2450 Contra Costa e-facing slope of gully (where relatively narrow) below chaparral Mount Diablo Comment
  UCD52165  Arctostaphylos manzanita Edward Lee 1936-1-12 1712 Contra Costa Canyon bottom; immediately south of Nortonville. Comment
  CDA9746  Arctostaphylos manzanita subsp. laevigata D. G. Kelch, D. A. Weinstein 1995-3-6 s.n. Contra Costa Rock City. Mt. Diablo. Comment
  JEPS124457  Arctostaphylos manzanita subsp. laevigata Daniel Slakey with CNPS Volunteers 2015-6-29 132 Contra Costa Wall Point Rd, along a roughly 1 km stretch of road just west of Wall Point. Comment
  JEPS38920  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1930-6-18 349 Contra Costa Rock City Canyon Mount Diablo Comment
  JEPS78231 Image available Arctostaphylos manzanita subsp. laevigata James Roof 1009 Contra Costa along Black Diamond Trail Black Diamond Regional Reserve; Black Diamond Trail, of the Black Diamond Regional Preserve, Contra Costa Co. 121 Comment
  RSA44373  Arctostaphylos manzanita subsp. laevigata L. S. Rose 1949-3-24 49014 Contra Costa W slope of Mt Diablo, near Rock City. 609 Comment
  UC549754  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 682 Contra Costa Mount Diablo Comment
  UC692516  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1931-3-1 541 Contra Costa e meridian (w part of chaparral); Mount Diablo, Inner Black Hills Comment
  UC909832  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 671 Contra Costa Mount Diablo Comment
  RSA0027948  Arctostaphylos manzanita subsp. laevigata Barbara Ertter 1997-9-14 15818 Contra Costa Southwest side of Mount Diablo, Wall Point Road on ridge northwest of Wall Point. Comment
  UC692224  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1938-6-24 3693 Contra Costa road 8.9 mi from North Gate (crest of ridge above road, below Pines Picnic Area); Mount Diablo 792 Comment
  CAS-BOT-BC24400  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1933-3-25 1765 Contra Costa Mt. Diablo. Diablo Stock Farm (Stone Valley) Canyon, w. fork: toward top of s. face. Also shrubs on n. face of Pine Comment
  POM300726  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-1-19 1074 Contra Costa Inner Black hills, at west end of chaparral: Just over crest of ridge on north-facing slope. Comment
  CAS-BOT-BC42234  Arctostaphylos pallida Walter Knight; Irja Knight 1980-3-16 3714 Contra Costa Sobrante Ridge between Heavenly Ridge Land and Castro Ranch Road. Comment
  LA42216  Arctostaphylos pallida Lewis S. Rose; 1934-1-29 34010 Contra Costa Summit of Oakland Hills above Redwood Canyon Comment
  POM127991  Arctostaphylos stanfordiana subsp. stanfordiana R. C. Bacigalupi 1924-2-17 s.n. Contra Costa Lower slopes of Mt. Diablo, on old wagon road to summit from Diablo Country Club. (Black Hills). 457 Comment
  UC2070442  Arctostaphylos tomentosa Barbara Ertter with Kevin Hintsa et al. 2003-4-20 18160 Contra Costa Wall Point Road east of Emmons Canyon Road, west side of Mount Diablo. Comment
  JEPS46276  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1943-6-19 20851 Contra Costa Moraga Ridge Comment
  JEPS98840  Arctostaphylos tomentosa subsp. crustacea Walter Knight, Irja Knight, James B. Roof, R. Gankin, R. Hildreth 1964-10-7 Contra Costa near Rock City; Mt. Diablo Comment
  UC1120146  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1936-2-16 1589 Contra Costa 2 1/2 mi nw Lafayette; Concord Quadrangle, Lafayette Ridge Comment
  UC549444  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-2-15 606 Contra Costa Moraga Ridge Comment
  CDA22411  Aristolochia californica D. G. Kelch, A. G. Murdock 2003-2-7 3 .034 Contra Costa Carquinez Strait Region; McEwen Road. Comment
  UC64561  Aristolochia californica H. M. Hall 1901-3-22 1682 Contra Costa canyon s. of Port Costa; San Francisco Bay Region Comment
  CAS-BOT-BC17386  Armoracia rusticana Walter Knight; Joanne Dean 1978-8-14 3121 Contra Costa Browns Island. Comment
  SEINET10669563  Arnica cordifolia John G. Lemmon 1872-1 Lemmon s.n. Contra Costa Summit of Mount Diablo. Comment
  RSA94492  Arnica discoidea F. W. Peirson 1923-7-1 3919 Contra Costa Mt. Diablo Comment
  CDA37337  Artemisia biennis D. G. Kelch 2010-10-31 10 .442 Contra Costa Valley north of Alhambra Valley Rd., south of Pinole Peak, east of Hercules. Comment
  CAS-BOT-BC84954  Artemisia californica Mary L. Bowerman 1931-11-21 1069 Contra Costa Mount Diablo, donner Canyon, east flank. Comment
  UC2042495  Artemisia californica Barbara Keller and J. Ruck 2011-6-23 Contra Costa Mt. Diablo State Park, North Gate Rd. Comment
  UCD38888  Artemisia californica Beecher Crampton 1959-10-19 5466 Contra Costa Mt. Diablo State Park. Comment
  UCD129214  Artemisia californica Beecher Crampton 1972-11-21 8892 Contra Costa 2 miles east Port Costa. Comment
  JEPS75552  Artemisia douglasiana P. F. Yorks 1975-7-12 472 A Contra Costa north of Briones Reservoir (on Hampton Road 1.7 km s of Bear Creek Road); Hampton Road Natural Reserve Comment
  UC630418  Artemisia douglasiana Paule Guiguet and Annetta Carter 1939-8-13 1451 Contra Costa se of Clayton; Mount Diablo drainage, Donner Creek 137 Comment
  RSA603956  Artemisia douglasiana Joseph A. Ewan 1934-5-20 8934 Contra Costa Contra Costa County: Russelmann Park, N side Mt. Diablo Comment
  UC169478  Asarum caudatum Katharine Brandegee Apr 1913 Contra Costa Eastport, Oakland Hills? Comment
  JEPS47810  Asclepias californica Frank A. Leach 1918-12-1 Contra Costa hill 1 1/2 mi sw Upper Pine Canyon; Mt. Diablo Comment
  UC22985  Asclepias fascicularis Edw. L. Greene June 1892 Contra Costa Walnut Creek Comment
  RSA121907  Asclepias fascicularis H. S. Yates 1934-9-2 4067 Contra Costa One mile southwest of Mt. Diablo 762 Comment
  HSC22051  Asparagus officinalis B. Dwelley 1966-4-9 9 Contra Costa Edens Plains Rd. 4 mi. E of Brentwood 20 Comment
  SD241650  Asphodelus fistulosus Barbara Ertter, Tony Morosco 2000-4-12 16959 Contra Costa Vasco Road 0.4 mile north of Tesla Road southeast of Livermore; roadside. Comment
  CAS-BOT-BC180528  Astragalus asymmetricus M. K. Curran 1886-5-1 51 Contra Costa Antioch Comment
  POM19312  Astragalus asymmetricus Katherine Brandegee 1908-1 s.n. Contra Costa Near Antioch Comment
  UC1606355  Astragalus asymmetricus Barbara Ertter with Dianne Lake 1991-8-18 10678 Contra Costa nw Bull Valley staging area (Carquinez Strait Regional Shoreline e of Crockett); Carquinez Strait Regioinal Shoreline e of Crockett Comment
  UC168336  Astragalus asymmetricus Katharine Brandegee 1908-1 Contra Costa near Antioch; near Antioch Comment
  CAS-BOT-BC180575  Astragalus asymmetricus M. K. Curran 1885-5-30 s.n. Contra Costa Marsh Creek, near Mt. Diablo Comment
  JEPS116733  Astragalus asymmetricus David Gowen 2006-3-27 536 Contra Costa Southwest of Byron airport. Comment
  CAS-BOT-BC177885  Astragalus didymocarpus var. didymocarpus Brandegee 1889-5-1 s.n. Contra Costa Antioch Comment
  JEPS54616  Astragalus didymocarpus var. didymocarpus F. T. Bioletti 1892-1 Contra Costa Byron Comment
  UC13432  Astragalus gambelianus State Survey 1862-5-12 1071 Contra Costa Mt. Diablo Comment
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Jan 20 2011
  CAS-BOT-BC178471  Astragalus gambelianus H. L. Mason 1928-4-15 4345 Contra Costa East-facing grassy slope, Moraga Ridge Comment
  CAS-BOT-BC178474  Astragalus gambelianus Mary L. Bowerman 1931-4-4 643 Contra Costa North of West road, sandy dry bank at low altitude, Mount Diablo. Comment
  CAS-BOT-BC17454  Athysanus pusillus John Thomas Howell 1926-3-7 1677 Contra Costa Mount Diablo. Comment
  UC691075  Athysanus pusillus Mary L. Bowerman 1935-4-27 2887 Contra Costa Ridge w of Pioneer Road ((w of Old Stage Road)) 853 Comment
  JEPS108320  Athysanus pusillus David Gowen 2005-2-23 168 Contra Costa Mt. Diablo State Park. Juniper Trail just south of Silver Spring. Comment
  POM225552  Athysanus pusillus J. T. Howell 1931-3-10 5754 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road. Comment
  UCD97866  Atriplex Robert E. Preston; Eva Buxton 1994-8-4 676 Contra Costa east end of Briones Valley, west of Marsh Creek Reservoir. 60 Comment
  UC217196  Atriplex argentea var. mohavensis H. M. Hall 1919-11-14 10972 Contra Costa Byron Byron (where road turns from highway to Springs Hog Wallows) Comment
  SEINET9292764  Atriplex cordulata Robert Preston, Muth, David 1993-9-7 634 Contra Costa Briones Valley, ca. 1 mile W of Marsh Creek Reservoir, in overflow channel of stock pond; in unsurveyed section. USGS Antioch South 7.5' quad. With Lotium multiflorum, Hordeum marinum ssp. gussoneanum. Comment
  CAS-BOT-BC168537  Atriplex coronata H. M. Hall 1923-10-2 s.n. Contra Costa Byron Hot Springs Comment
  CDA37399  Atriplex coronata D. G. Kelch, Mike Perlmutter 2011-9-23 11 .76 Contra Costa Entry to Discovery Bay. Comment
  RSA0036964  Atriplex coronata D. G. Kelch, Mike Perlmutter 2011-9-23 11 .760 Contra Costa Entry to Discovery Bay. 2 Comment
  UC1601680  Atriplex coronata Katharine Brandegee 1907-5-3 Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  CAS-BOT-BC168540  Atriplex coronata John Thomas Howell 1930-9-28 5503 Contra Costa 5.4 miles from Byron on Marsh Creek Road Comment
  JEPS99040  Atriplex coronata Robert E. Preston & Eva Buxton 1994-8-4 618 Contra Costa 0.9 mi NW Marsh Creek Reservoir. 76 Comment
  CHSC98937  Atriplex coronata var. coronata Samantha Mackey Hillaire 2007-7-17 1243 a Contra Costa Briones Valley, ~0.2 mile west of Marsh Creek Reservoir. 60 Comment
Read comments
Jan 22 2009
  SEINET4133821  Atriplex fruticulosa Howard C. Stutz, G. L. Chu 1991-4-12 95463 Contra Costa 2 mi. S of Byron, E side of road in 'native' pasture.; 0 Comment
  UC70181  Atriplex fruticulosa J. Burtt Davy May 1898 Contra Costa region Mount Diablo (Livermore Pass); region of Mount Diablo, Livermore Pass Comment
  UCD97408  Atriplex fruticulosa John Thomas Howell 1972-6-29 48917 Contra Costa on Bron Hot Springs Road southeast of Byron. Comment
  UC1601683  Atriplex joaquinana Katharine Brandegee 1907-5-3 Contra Costa between Antioch Marsh Creek; between Antioch and Marsh Creek Comment
  CDA23285  Atriplex lentiformis subsp. breweri F. T. Swett 1960-9-23 Contra Costa Hill Girt Farm, Alhambra Valley, Martinez. 0 Comment
  JEPS25154  Atriplex leucophylla G. Thomas Robbins with John Weiler 1959-5-23 4024 Contra Costa on breakwater northwestern extension Brooks Island (Richmond); San Francisco Bay, , Brooks Island Comment
  UC2042867  Atriplex prostrata Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10871 Contra Costa Dow Wetland Preserve, just W of Antioch. Comment
  UCD158700  Atriplex prostrata James A. Neilson Jr. 1972-10-22 3509 a Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 0 Comment
  JEPS111801  Atriplex semibaccata D. G. Kelch 2004-7-9 04 .300 Contra Costa Port Costa - Shore Past Costa Shore 2 Comment
  SEINET11268190  Atriplex semibaccata Barbara Ertter 1990-9-30 9655 Contra Costa NW side of county, SE of Hilltop Mall in N Richmond. Near Day's Inn; 0 Comment
  CDA23333  Atriplex triangularis D. G. Kelch, A. G. Murdock 2003-8-13 3 .095 Contra Costa Carquinez Strait Region; Martinez Marsh Comment
  CDA19822  Avena barbata P. Akers 2002-5-11 s.n. Contra Costa Northern California; Mt Diablo Summit Trail at water tank picnic area. 873 Comment
  CDA19823  Avena fatua P. Akers 2002-5-11 s.n.- 2 Contra Costa Northern California; Mt Diablo Summit Trail at water tank picnic area. 873 Comment
  UCSB12521  Avena fatua Grah, Nancy 1962-4-14 Contra Costa 0.2 mi N of Miner Rd on Sleepy Hollow Lane; Orinda 182 Comment
  CAS-BOT-BC98764  Baccharis douglasii John Thomas Howell 1926-1-17 1627 Contra Costa Between Cashion and las Trampas Ridge Comment
  CDA10377  Baccharis glutinosa D. G. Kelch, A. G. Murdock 2003-8-13 3 .138 Contra Costa Carquinez Strait; Pinole Creek. Comment
  UC1199295  Baccharis glutinosa Joseph P. Tracy 1932-9-10 10784 Contra Costa e of and on Franklin Canyon Road Pinole (Rodeo Creek); , Franklin Canyon Road 60 Comment
  UC1618405  Baccharis glutinosa Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10696 Contra Costa n. Pittsburg (Browns Isl., near confluence of Sacramento & San Joaquin rivers, opposite Pittsburg Marina, flat in center of w. end of island); Browns Island Comment
  LA203046  Baccharis glutinosa Joseph Andorfer Ewan; 1936-8-30 10119 Contra Costa Shasta road, W rim Wildcat Canyon Comment
  UC2028233  Baccharis glutinosa Barbara Ertter 1998-11-15 16463 Contra Costa North side Mount Olympia on north side Mount Diablo. Comment
  JEPS75551  Baccharis pilularis P. F. Yorks 1921-9-11 369 Contra Costa 1.6 km s, on Hampton Road in Hampton Road Natural Reserve Bear Creek Road ((n of Briones Reservoir)); Hampton Road Natural Reserve 180 Comment
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Dec 21 2009
  CHSC23340  Baccharis salicifolia Willis Ball 1975-3-2 460 Contra Costa Contra Loma Regional Park. In area #4. On beach on E side of lake ca. 175 yds S of dam. 30 Comment
  PASA1585  Balsamorhiza deltoidea Annetta Carter 1929-3-31 Contra Costa Hills north of Mt. Diablo, near Clayton Comment
  CAS-BOT-BC16379  Barbarea orthoceras John Thomas Howell 1976-5-20 s.n. Contra Costa Mount Diablo. Below Juniper Camp. Comment
  UC691250  Barbarea orthoceras Mary L. Bowerman 1933-5-3 1972 Contra Costa due s Mount Diablo summit ((Meridian Peak)); Mount Diablo 731 Comment
  POM44500  Bellardia trixago C. C. Hall 1911-5-20 8835 Contra Costa Contra Costa County: rounded hills near concord, alt 100m 100 Comment
  SD30222  Bellardia trixago P. O. Schallert 1943-4-27 Contra Costa 1 mile east of Martinez, in meadow Comment
  UC2027719  Berberis aquifolium var. dictyota Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15515 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC1076434  Berberis pinnata Herbert L. Mason 1925-3-10 1298 Contra Costa Sycamore Canyon; Mt Diablo Comment
  UC894031  Bidens laevis Lewis S. Rose 1938-10-28 38311 Contra Costa Byron 3 Comment
  CHSC23347  Blennosperma nanum Willis Ball 1975-3-2 470 Contra Costa Contra Loma Regional Park. In area #1. On small hill ca. 10 yds N of N end of main parking lot at S end of lake. 36 Comment
  CAS-BOT-BC100703  Blennosperma nanum var. nanum M. K. C. 1886-5-1 s.n. Contra Costa Antioch Comment
  JEPS17891  Blennosperma nanum var. nanum Rimo Bacigalupi with G. T. Robbins 1956-3-26 5526 Contra Costa Deer Valley, along Deer Valley Road 76 Comment
  UC1119039  Blennosperma nanum var. nanum H. S. Yates 1936-4-14 13818 Contra Costa 1/2 mi n of mouth of Perkins Canyon; Mt. Diablo Quadrangle 228 Comment
  UC762545  Blennosperma nanum var. nanum R. F. Hoover 1938-2-27 2784 Contra Costa Danville Comment
  SEINET1910262  Blennosperma nanum var. nanum Barbara Ertter 1992-1 10908 Contra Costa Byron Springs Road, 4-5 miles south of Junction with J4, near Armstrong Road Comment
  POM351055  Blepharizonia laxa T. S. Brandegee 1887-09 s.n. Contra Costa Antioch. Comment
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Dec 16 2012
  CAS-BOT-BC100338  Blepharizonia plumosa R. F. Hoover 1937-9-2 2708 Contra Costa Walnut Creek Comment
  JEPS19359  Blepharizonia plumosa H. M. Hall 1916-8-17 10275 Contra Costa Los Medanos Region of San Francisco Bay, Suisun Bay Comment
  UC2029131  Blepharizonia plumosa Barbara Ertter 2003-7-6 18242 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, south end of Carbondale Trail. Comment
  UC311580  Blepharizonia plumosa Miss H. A. Walker 1916-8-28 3922 Contra Costa near Antioch (Los Medanos); Los Medanos Comment
  UC762569  Blepharizonia plumosa R. F. Hoover 1937-8-31 2704 Contra Costa Pittsburg Comment
  CAS-BOT-BC100322  Blepharizonia plumosa Eva Buxton 1994-8-10 1099 Contra Costa Cowell Ranch, ca. 0.5 mi. E and 1 mi. S of Marsh Creek Reservoir Comment
  CAS-BOT-BC15964  Boechera breweri subsp. breweri J. W. Congdon 1896-5-8 s.n. Contra Costa Mount Diablo. Comment
  UC565476  Boechera breweri subsp. breweri Herbert L. Mason 1926-3-7 2796 Contra Costa Summit of Mt. Diablo Mt. Diablo Comment
  SEINET3132246  Boechera breweri subsp. breweri M. S. Baker 1904-6-24 sn Contra Costa Near summit of Mt. Diablo, along Mitchel Canyon Trail. Comment
  UCD102381  Boechera breweri subsp. shastaensis Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 900 Comment
  UCD102382  Boechera breweri subsp. shastaensis Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 1060 Comment
  POM32378  Boisduvalia glabella Katherine Brandegee 1905-6-16 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC31334  Bolboschoenus maritimus Walter Knight; Joanne Dean 1978-8-14 3161 Contra Costa Browns Island. Comment
  UC2029013  Bolboschoenus maritimus subsp. paludosus Barbara Ertter, Dan Norris 1999-11-14 16854 a Contra Costa Black Diamond Mines Regional Preserve, Sand Creek on east side Stewartville Trail. Comment
  SEINET11748149  Bolboschoenus robustus Unknown 1940-1 1004 a Contra Costa 2 mi S of San Rafael ferry dock Comment
  JEPS111627  Bowlesia incana D. G. Kelch 2005-4-15 05 .139 Contra Costa Rodeo Creek 100 Comment
  JEPS78174  Brassica rapa Gary W. Zamzow 1973-1-26 125 Contra Costa 300 m. s. of Central Ave. overpass & 100 m. w. of Hoffman Blvd. on landfill at edge of bay Richmond Comment
  UCD164897  Brodiaea elegans subsp. elegans Henry House 1995-5-20 1995- 15 Contra Costa about 1 km west of Walnut Blvd., ca. 0.5 km south of Marsh Creek Rd. 60 Comment
  POM181436  Brodiaea terrestris subsp. terrestris I. L. Wiggins 1930-4-17 4573 Contra Costa Near Byron. Comment
  OBI70522  Bromus carinatus D. G. Kelch 2008-4-25 8 .089 Contra Costa Alvarado Park (W end of Wildcat Cyn Park) on N facing hillside above Hindu temple 122 Comment
  UC53630  Bromus carinatus var. carinatus Joseph Burtt Davy 1900-3-24 6543 Contra Costa Potrero Comment
  UC606737  Bromus carinatus var. carinatus Edward Lee 1936-4-19 1958 Contra Costa San Francisco Bay, Red Rock Red Rock; San Francisco Bay, Red Rock Comment
  UC697129  Bromus carinatus var. carinatus Mary L. Bowerman 1935-5-1 2947 Contra Costa West Road 6.7 mi from entrance, Mount Diablo West Road; Mount Diablo, West Road 640 Comment
  CAS-BOT-BC149543  Bromus carinatus var. carinatus David C. Rentz 1968-4-29 5 Contra Costa Between homes near Oak View Avenue on Ocean View Avenue. Kensington. Comment
  SBBG115848  Bromus carinatus var. marginatus B. Crampton 1956-5-14 3393 Contra Costa ca. 7 mi SW of city of Antioch, just E of old mining town of Nortonville Comment
  CHSC21623  Bromus catharticus Willis Ball 1975-3-25 503 Contra Costa Contra Loma Regional Park. In area #1. Under olive trees in picnic area ca. 50 yds w of main parking lot ca. 50 yds s of the lake. 36 Comment
  UC2028538  Bromus catharticus Barbara Ertter 1998-2-15 15917 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, Edge of Bob Pond and picnic area at Old Borges Ranch. Comment
  UC1948970  Bromus diandrus William J. Ferlatte, L. Maynard Moe 1970-4-27 1238 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC2028404  Bromus diandrus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16113 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, along Ohlone Trail Comment
  UC60184  Bromus diandrus Jos. Burtt Davy 1899-4-19 7867 Contra Costa Moraga Valley Comment
  UC691227  Bromus diandrus Mary L. Bowerman 1935-5-16 2983 Contra Costa Mount Diablo, Russelman Park, at end of road Russelman Park; Mount Diablo, Russelman Park 381 Comment
  UC692288  Bromus diandrus Mary L. Bowerman 1935-5-1 2935 Contra Costa 2 mi from Entrance (Mount Diablo, West Road = North Road); Mount Diablo, West Road 182 Comment
  UCD84945  Bromus diandrus Chuck Hughes 2010-3-29 217 Contra Costa About 0.7 mile south of Vasco Road. 238 Comment
  JEPS100024  Bromus hordeaceus G. Smick 2003-3-27 GAS 95 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC692346  Bromus hordeaceus Mary L. Bowerman 1933-4-15 1870 Contra Costa Canyon s of Arroyo del Cerro (Mount Diablo); Mount Diablo Comment
  CAS-BOT-BC155472  Bromus hordeaceus P. F. Knowles 1941-1-1 B 83 Contra Costa Briones Hills. Davis. Greenhouse. Comment
  CAS-BOT-BC162352  Bromus madritensis Mary L. Bowerman 1935-5-16 2991 Contra Costa Mount Diablo. Russelman Park, at end of road. Comment
  CHSC21638  Bromus madritensis subsp. rubens Willis Ball 1975-3-9 479 Contra Costa Contra Loma Regional Park. In area #8. On top of hill ca. 600 yds. sw of main parking lot ca. 800 yds. w of Contra Loma Blvd. 152 Comment
  UC692341  Bromus madritensis subsp. rubens Mary L. Bowerman 1931-5-7 817 Contra Costa Mount Diablo, Meridian Peak (=North Peak) Meridian Peak; Mount Diablo, Meridian Peak Comment
  CDA23570  Bromus rubens D. G. Kelch, D. A. Weinstein 2008-4-25 8 .088 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
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Jan 7 2016
  UCD59614  Bromus rubens Beecher Crampton 1956-5-14 3410 Contra Costa Southern boundary of Mt. Diablo State Park. Comment
  CAS-BOT-BC161948  Bromus rubens Mary L. Bowerman 1931-4-18 731 Contra Costa Mount Diablo. Sycamore Canyon. 365 Comment
  UC1980316  Calamintha sylvatica subsp. ascendens Barbara Ertter with David Gowen 2011-10-6 20918 Contra Costa Tilden Regional Park in hills east of Berkeley; lower Vollmer Peak Trail southeast of Big Spring picnic area Comment
  JEPS99499  Calandrinia breweri Mary Bowerman 1979-5-2 Contra Costa Comment
  CAS-BOT-BC438364  Calandrinia ciliata Brandegee No date on label s.n. Contra Costa Antioch Comment
  UC1050752  Calceolaria integrifolia N. Floy Bracelin 1942-6-28 2166 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC2029035  Calendula arvensis Barbara Ertter 2000-3-30 16907 Contra Costa North side of Mount Diablo, Mitchell Canyon Road uphill of lowermost switchback, exposed roadside. Comment
  CAS-BOT-BC167286  California macrophylla Brandegee s.n. Contra Costa Antioch Comment
  UCD84952  California macrophylla Chuck Hughes 2010-3-31 224 Contra Costa About 0.3 mile north of Vasco Road. 357 Comment
  RSA721205  Callitriche heterophylla var. bolanderi Barbara Ertter, Mary L. Bowerman 1995-5-7 14034 Contra Costa Three-Springs Trail on NE side of Mt. diablo SE of Clayton; pond W side of road in grassy flat. Comment
  NY409592  Callitriche marginata B. J. Ertter 1989-4-5 8144 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca. 15 air miles SW of Stockton, near sea level Comment
  JEPS108220  Calochortus albus David Gowen 2005-4-30 275 Contra Costa Los Vaqueros Watershed. Hills above west side of valley at intersection of Round Valley and Morgan Territory Regional Preserves. Comment
  CAS-BOT-BC492125  Calochortus amabilis I. Williams 1920-4-29 s.n. Contra Costa Mount Diablo Comment
  JEPS102916  Calochortus argillosus Barbara Ertter with Dan Norris 1998-6-18 16209 Contra Costa South Gate Road ca 1 mi from entrance Mount Diablo 304 Comment
  JEPS61679  Calochortus luteus W. L. Jepson 1921-5-22 9216 Contra Costa Mt. Diablo Comment
  JEPS122394  Calochortus pulchellus Nisrine Machaka-Houri 2014-5-17 NG 14 Contra Costa Black Point Trail, Mitchell Canyon, Mt. Diablo State Park. Comment
  JEPS125942  Calochortus pulchellus D. W. Taylor 2001-4-26 17627 Contra Costa Black Diamond Mines Regional Preserve; 1 mile SSW of Nortonville (site); growing on access road to PG&E electrical transmission lines. Comment
  OBI21346  Calochortus pulchellus Robert F. Hoover 1968-5-16 11092 Contra Costa Upper Marsh Creek Comment
  UC1134509  Calochortus pulchellus C. M. Belshaw 1936-5-12 2104 Contra Costa 1 mi s Tassajero Rd. summit; Mt. Diablo 304 Comment
Read comments
Dec 29 2006
  CAS-BOT-BC132499  Calochortus pulchellus W. W. Carruth 1900-4-1 s.n. Contra Costa Lafayette Comment
  UC56197  Calochortus umbellatus H. M. Hall 1900-3-24 Contra Costa San Pablo Hills San Francisco Bay Region Comment
  RSA68630  Calochortus venustus Frank W. Peirson 1923-7-1 3682 Contra Costa Mt. Diablo. Comment
  UC697175  Calycadenia truncata Mary L. Bowerman 1936-9-1 3536 Contra Costa between North Peak and the mouth of Perkins Canyon North Peak; Mount Diablo 487 Comment
  UC2027942  Calycadenia truncata Barbara Ertter 1997-9-7 15799 Contra Costa North side Mount Diablo, Falls Trail in Donner Canyon. Comment
  UC691543  Calycadenia truncata Mary L. Bowerman 1933-8-26 2412 Contra Costa w of Lower Pine Spring; Mount Diablo Comment
  UC691852  Calystegia malacophylla subsp. pedicellata Mary L. Bowerman 1935-5-25 3072 Contra Costa s summit (Mount Diablo); Mount Diablo 1082 Comment
  JEPS31638  Calystegia purpurata W. L. Jepson 1922-6-7 9720 Contra Costa North Berkeley Hills Comment
  JEPS78819  Calystegia purpurata Edward Lee 1936-5-24 2160 Contra Costa about 2 mi se Curry Canyon (Marsh Creek, Morgan Territory); Morgan Territory, se of Curry Canyon, Marsh Creek Comment
  UC691845  Calystegia purpurata Mary L. Bowerman 1933-4-26 1918 Contra Costa North Peak ridge ese of the Peak (south face, Mount Diablo); Mount Diablo, North Peak Ridge ese of the peak 609 Comment
  POM312614  Calystegia sepium subsp. limnophila Malcolm A. Nobs, S. Galen Smith 1949-7-8 941 Contra Costa Otto's Black Bass Resort, 4 miles north of Kingston. Comment
  RSA0033851  Calystegia subacaulis Barbara Ertter 1999-7-17 16760 Contra Costa El Cerrito, west side of Arlington Ave. in small triangle of land between Moeser Ln. and Terrace Dr. Comment
  UC2029024  Calystegia subacaulis Barbara Ertter 1999-7-17 16760 Contra Costa El Cerrito, west side of Arlington Ave. in small triangle of land between Moeser Ln. and Terrace Dr., among mowed Avena. Comment
  UC2042951  Calystegia subacaulis Barbara Ertter 2002-5-11 17836 Contra Costa Southwest base of Mount Diablo, Green Valley Trail west of Mount Diablo State Park boundary SW of Wall Point (paralleling white paddock fence) Comment
  JEPS100014  Calystegia subacaulis subsp. subacaulis G. Smick 2003-5-6 GAS 170 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1794983  Calystegia subacaulis subsp. subacaulis R. K. Brummitt and B. Ertter 1998-5-6 19784 Contra Costa Mt. Diablo, NW side, path to Mitchell's Rock 300 Comment
Read comments
Aug 3 2013
  RSA135413  Camissonia campestris subsp. campestris Volney Rattan 1879-1 s.n. Contra Costa Antioch Comment
  POM257264  Camissonia campestris subsp. campestris H. L. Mason 1929-3-31 5153 Contra Costa Along San Joaquin River, Antioch. Comment
  UC2028347  Camissonia contorta Barbara Ertter 1991-5-5 9780 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, ridge E of Coal Canyon, N-facing slope Comment
  JEPS2509 Image available Campanula exigua Volney Rattan 1886-6-1 Contra Costa Monte Diablo; ; Mt. Diablo Comment
  UC29002  Campanula exigua Edw. L. Greene 1892-6-20 Contra Costa Mount Diablo Comment
  JEPS108315  Campanula griffinii David Gowen 2005-5-28 391 Contra Costa Mt. Diablo State Park. Prospectors Gap Road outside of park boundary. Small serpentine area ca 1/4 mile west of junction with Ray Morgan Rd. (dirt). Comment
  UC691085  Cardamine californica Mary L. Bowerman 1931-2-8 504 Contra Costa Mineral Spring , Mineral Spring (Mount Diablo) 396 Comment
  POM225551  Cardamine californica var. integrifolia J. T. Howell 1931-3-10 5757 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road. Comment
  UCR17092  Cardamine oligosperma James K. Ryan 1969-3-31 46 Contra Costa Mt. Diablo State Park, Horseshoe Picnic Area, very close to area entrance 610 Comment
  POM300574  Cardamine oligosperma Mary L. Bowerman 1932-3-6 1100 Contra Costa Sycamore Canyon, east fork: Near trail. Comment
  UCD114568  Cardamine oligosperma Terri Williamson 1990-4-10 1 Contra Costa 212 Poshard Street, Pleasant Hill. 12 Comment
  SEINET4023248 Image available Carduus pycnocephalus B. C. Templeton 1962-1 sn Contra Costa Mount Diablo. Comment
  UC1555379  Carduus pycnocephalus subsp. pycnocephalus Jerry Powell 1988-5-18 1536 Contra Costa Pt. Molate, w Richmond Richmond, Pt. Molate Comment
  CAS-BOT-BC19207  Carex barbarae Walter Knight; B. Atwater; R. Bensler; J. Dean; B. Mortensen 1979-4-13 3365 Contra Costa Alder Point. Browns Island. Comment
  UC691966  Carex densa Mary L. Bowerman 1938-6-14 3682 Contra Costa Rocky Point Spring 701 Comment
  JEPS105721  Carex densa David Gowen 2004-9-13 161 Contra Costa Mt. Diablo State Park. Johnny Walker Spring, which is ca. .2 mile above the junction of Angel Kerley Rd. (fire trail) and North Gate Rd., approx. 2200' elev. Comment
  JEPS111620  Carex obnupta D. G. Kelch 2004-7-9 04 .305 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  UC691961  Carex pellita Mary L. Bowerman 1935-5-16 3000 Contra Costa Russelman Park Road at Gregory Ranch junction; Mount Diablo 289 Comment
  CAS-BOT-BC119014  Carex pellita Miss Mary Leolin Bowerman 1935-5-16 3000 Contra Costa Russelmann Park road at Gregory Ranch junction. 289 Comment
  UC1952822  Carex pendula Barbara Ertter with David Gowen 2010-11-17 20699 Contra Costa southeast part of Lime Ridge Open Space (City of Walnut Creek), lower end of east-facing drainage below Crystyl Ranch Trail ca 1/4 mi N of jct Paraiso Trail Comment
  CDA33135  Carex praegracilis D. G. Kelch, Andrew G. Murdock 2005-3-24 5 .064 Contra Costa Carquinez Strait Region; Southern Point Pinole. Comment
  UC692013  Carex serratodens Mary L. Bowerman 1932-11-19 1653 Contra Costa Elder Spring Mount Diablo Comment
  UC2028450  Carex serratodens Barbara Ertter with Chris Thayer 1996-10-25 15388 Contra Costa West side of Mount Diablo, South Gate Road just south of junction at Mountain House Creek crossing Comment
  UC2028564  Carex serratodens Barbara Ertter with Mary Bowerman 1996-11-1 15405 Contra Costa North base of Mount Diablo, lower Donner Creek between trailhead and cabin site, along now dried stream bed. Comment
  CDA6929  Carthamus creticus H. Sparkman 1973-5-3 Contra Costa San Ramon Creek, Walnut Creek. 0 Comment
  JEPS74803  Castilleja L. R. Heckard, T. I. Chuang and R. C. Bacigalupi 1975-5-7 4011 Contra Costa ca 0.5 mi e Pinole (just e of Interstate 80, along main route of Santa Fe RR) Comment
  UC1818874  Castilleja affinis subsp. affinis Barbara Ertter, Brad Olson 1994-5-7 12753 Contra Costa Send Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Hillside Comment
  UC27158  Castilleja ambigua subsp. ambigua Jos. Burtt Davy 1900-6-7 6666 Contra Costa Martinez Comment
  HSC101960  Castilleja applegatei subsp. martinii Nikolaus Gillen, Michelle Bihler 2014-3-20 12 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  UC691577  Castilleja attenuata Mary L. Bowerman 1931-4-4 668 Contra Costa n side Turtle Rock; Mount Diablo Comment
  UC691580  Castilleja attenuata Mary L. Bowerman 1932-4-9 1333 Contra Costa from near Rock City ridge to Wall Point; Mount Diablo Comment
  JEPS74807  Castilleja densiflora subsp. densiflora L. R. Heckard, T. I. Chuang and R. Bacigalupi 1975-5-7 4015 Contra Costa ca 0.5 mi e Pinole (just e of Interstate Hwy 80, along main route of Santa Fe Railroad) Comment
  UC2070538  Castilleja densiflora subsp. densiflora Barbara Ertter with Richard K. Brummitt 1998-5-6 16107 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor. Comment
  CHSC21620  Castilleja exserta Willis Ball 1974-4-21 425 Contra Costa In area #7. Immediately to the w side of Contra Loma Blvd. ca. 400 yds s of the main boat ramp. Contra Loma Regional Park. 45 Comment
  CDA41325  Castilleja exserta subsp. exserta D. G. Kelch 2005-5-13 5 .239 Contra Costa Carquinez Strait Region; Martinez. South of oil refinery along railroad tracks in fragment of habitat. Comment
  JEPS15607  Castilleja exserta subsp. exserta R. Bacigalupi and G. Thomas Robbins 1955-5-4 4972 Contra Costa e outskirts Concord (field along Treat Lane, in Clayton Valley); Clayton Valley, Concord 60 Comment
  UC691566  Castilleja exserta subsp. exserta Mary L. Bowerman 1931-4-4 646 Contra Costa about 1 mi from North Gate, Mount Diablo (North Road); Mount Diablo Comment
  UC691561  Castilleja foliolosa Mary L. Bowerman 1931-3-1 532 Contra Costa e of meridian Inner Black Hills; Mount Diablo Comment
  RSA0068053  Castilleja foliolosa Katie Gallagher, Nick Jensen 2014-4-26 197 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  CAS-BOT-BC241277  Castilleja latifolia Alice Eastwood 1915-6-21 4740 Contra Costa San Leandro Comment
  JEPS15184  Castilleja rubicundula subsp. lithospermoides C. M. Belshaw 1936-5-11 2095 Contra Costa 5.25 mi e Danville; Mt. Diablo Quad. 289 Comment
  CAS-BOT-BC41037  Caulanthus flavescens Mary L. Bowerman 1935-4-22 2879 Contra Costa Mount Diablo. North Road 2 miles from North Gate. 213 Comment
  UCD114675  Caulanthus lasiophyllus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  JEPS116912  Caulanthus lasiophyllus David Gowen 2009-4-4 978 Contra Costa West face near summit of hill east of Las Trampas Ridge, just northwest of junction of Del Amigo and Sulpher Springs trails. Comment
  SEINET3292741 Image available Ceanothus Craig Davis 1970-7-8 D- 168 Contra Costa Growing along roadcut in open areas under power lines on Manzanita Drive in Oakland Hills, in shallow sandy soil. 427 Comment
  CAS-BOT-BC48832  Ceanothus cuneatus John Thomas Howell 1926-3-7 1664 Contra Costa Mt. Diablo on old wagon road Comment
  CAS-BOT-BC48836  Ceanothus cuneatus Mary L. Bowerman 1932-5-1 1406 Contra Costa Oyster Ridge, outer steep face of Alamo Creek Comment
  CAS-BOT-BC48838  Ceanothus cuneatus Mary L. Bowerman 1931-2-28 527 Contra Costa Near top of south road Comment
  CAS-BOT-BC48839  Ceanothus cuneatus C. H. M. 1919-8-24 s.n. Contra Costa Las Trampas Peak Comment
  CAS-BOT-BC48841  Ceanothus cuneatus Alice Eastwood 1922-3-17 11080 Contra Costa Mt. Diablo Comment
  RSA15450  Ceanothus cuneatus Alice Eastwood, John T. Howell 1936-4-19 s.n. Contra Costa Nortonville. Comment
  UCD112079  Ceanothus cuneatus M. Wiesendanger 1926-6-1 1532 Contra Costa Mt. Diablo. Comment
  UC1071131  Ceanothus cuneatus var. cuneatus R. C. Wilson 1935-3-12 123 Contra Costa 1 mi se, Wall Pt.; Mt. Diablo quad. 335 Comment
  UC692591  Ceanothus cuneatus var. cuneatus Mary L. Bowerman 1932-5-1 1406 Contra Costa Oyster Ridge, outer steep face of Alamo Creek, Mount Diablo Comment
  CAS-BOT-BC51496  Ceanothus oliganthus var. sorediatus Mary L. Bowerman 1930-6-22 365 Contra Costa Mitchell Canyon: North slope Comment
  JEPS42292  Ceanothus oliganthus var. sorediatus W. L. Jepson 1907-4-26 2465 Contra Costa Mitchell Creek Mt. Diablo Comment
  CDA18840  Centaurea calcitrapa J. Vargas 1999-7-19 PDR 1219275 Contra Costa near the junction of Hwy 4 and Willow Pass Rd., nr. Concord. 0 Comment
  UCD159458  Centaurea calcitrapa D. S. Park; K. Yeo 2010-8-7 212 Contra Costa Mare Island. Along Railroad Rd. Growing next to old railroads w/ Cichorium, parsnip. Shrubby. Road blocked. 8 Comment
  UC1051344  Centaurea cineraria N. Floy Bracelin 1941-6-8 1384 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC277053  Centaurea melitensis Joseph Andorfer Ewan 1936-5-3 9506 Contra Costa Wildcat Creek Comment
  HSC5243  Centaurea melitensis Greg Bos 1963-4-14 77 Contra Costa Bayshore freeway at Central Ave.; Richmond Flat Area 1 Comment
  UC1479603  Centaurea solstitialis Gloria Merrill 1980-5-30 Contra Costa ca. 2 mi w of junction with Marsh Creek Road El Camino (along Marsh Creek Road) Comment
  CAS-BOT-BC284464  Centaurea solstitialis Walter Knight; Wayne Roderick; Steve Edwards; Bob Doyle 1978-9-19 3249 Contra Costa Browns Island, Alder Point Comment
  UC2027958  Centaurea solstitialis Barbara Ertter with Joanne Kerbavaz 2000-8-20 17495 Contra Costa South side Mount Diablo, ca halfway up South Gate Road. Comment
  JEPS111969  Centaurium davyi Christopher Thayer 1995-6-5 Contra Costa West of Pinole Peak 274 Comment
  UC1178020  Centaurium muehlenbergii Herbert L. Mason 1955-7-14 14637 Contra Costa 0.5 mi e Antioch Bridge Comment
  UC691834  Centaurium muehlenbergii Mary L. Bowerman 1930-9-27 463 Contra Costa 2.25 mi by road from Mount Diablo north entrance (west base spring, take trail trough to w, follow to fence and go through); Mount Diablo Comment
  CDA36467  Centaurium tenuiflorum Ed Swan 2011-8-18 PDR# 1641228 Contra Costa Orinda; Bear Creek Road near Fire Trail 43-4. 0 Comment
  UC1050884  Centranthus ruber N. Floy Bracelin 1942-5-17 1288 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050885  Centranthus ruber N. Floy Bracelin 1942-5-17 1287 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1076270  Centromadia fitchii Herbert L. Mason 1929-9-21 5433 Contra Costa 3 mi above Clayton (Marsh Creek Road) Comment
  UC2028098  Centromadia fitchii Barbara Ertter, Chris Thayer 1996-10-25 15375 Contra Costa West side of Mount Diablo, North Gate Road 0.8 road miles NW of Burma Road, spring area with abundant Distichlis, on tributary of Little Pine Creek. Comment
  CAS-BOT-BC288873  Centromadia parryi subsp. congdonii R. E. Preston 1998-10-6 1171 Contra Costa On N side of Camino Tassajara, from Tassajara Hill Elementary School to 0.35 mile W of Finlay Rd 228 Comment
  OBI16179  Centromadia parryi subsp. congdonii Robert F. Hoover 1966-8-31 9943 Contra Costa Jctn of Tassajara and Freitas Rds E of Danville Comment
  UCD14671  Centromadia pungens Mick Canaveri 1997-4-1 s.n. Contra Costa near Brentwood. Comment
  CAS-BOT-BC279181  Centromadia pungens subsp. pungens Walter Knight; Irja Knight; et al 1978-9-5 3224 Contra Costa Browns Island Comment
  CAS-BOT-BC279205  Centromadia pungens subsp. pungens John Thomas Howell 1930-9-28 5489 Contra Costa 2 miles from Concord on road to Walnut Creek Comment
  JEPS111721  Centromadia pungens subsp. pungens D. G. Kelch 2004-6-19 04 .288 Contra Costa Crockett Immediately West (almost under) Carquinez Bridge along San Pable Ave. 10 Comment
  UC473441  Centromadia pungens subsp. pungens John Thomas Howell 1930-9-28 5489 Contra Costa 2 mi from Concord (on road to Walnut Creek) Comment
  UC523551  Centromadia pungens subsp. pungens David D. Keck 1933-11-2 2613 Contra Costa 3 mi s Martinez (on road to Pacheco) Comment
  UC912272  Centromadia pungens subsp. pungens H. L. Mason 1929-9-21 5438 Contra Costa Marsh Creek Road Comment
  CAS-BOT-BC279180  Centromadia pungens subsp. pungens John Thomas Howell 1929-9-21 4395 Contra Costa Marsh Creek Road 3.5 miles sw. of Brentwood Comment
  CAS-BOT-BC279184  Centromadia pungens subsp. pungens H. M. Hall 1930-8-7 12847 Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC279191  Centromadia pungens subsp. pungens Niall McCarten; V. I. Dains 1986-1-1 04131748 Contra Costa E. of Byron Hot Springs Rd. Comment
  UC1594173  Cephalanthus occidentalis var. californicus Jerry Powell 1991-8-15 1612 Contra Costa Antioch National Wildlife Refuge Comment
  UC2027966  Cerastium fontanum subsp. vulgare Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15672 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait. Comment
  CDA19002  Ceratophyllum demersum R. Gage 2000-10-18 PDR 1198719 B Contra Costa Clifton Ct. Forebay, NW of Tracy, at the head of State Water project. 0 Comment
  UC691104  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1931-4-5 677 Contra Costa below Gregory Ranch (Mount Diablo); Mount Diablo Comment
  UC90158  Chaenactis glabriuscula var. glabriuscula C. F. Baker 1903-4-27 2940 Contra Costa Antioch Paicfic Coast, Antioch Comment
  CAS-BOT-BC284217  Chaenactis glabriuscula var. megacephala A. A. Heller 1908-4-16 8894 Contra Costa East of Antioch 22 Comment
  POM54137  Chaenactis glabriuscula var. megacephala C. F. Baker 1903-4-27 2940 Contra Costa Antioch Comment
  CAS-BOT-BC284222  Chaenactis glabriuscula var. megacephala Alice Eastwood 1914-3-17 3799 Contra Costa Byron Springs Comment
  JEPS9018  Chamaesyce ocellata subsp. ocellata W. L. Jepson 1901-10-11 13926 Contra Costa Mount Diablo Comment
  JEPS111952  Chamaesyce serpens D. G. Kelch 2004-7-9 04 .301 Contra Costa McEwen Road McEwen marsh. McEwen Road North of Cummings Skyway 130 Comment
  JEPS94004  Cheilanthes gracillima J. Greenhouse 1998-6-14 Contra Costa w. of Burma Rd. Trail ca. 1 mi. above North Gate Rd. Mt. Diablo 426 Comment
  CHSC23348  Chenopodium album Willis Ball 1975-6-1 532 Contra Costa Contra Loma Regional Park. In area #11. On n side of road ca. 200 yds e of main entrance to park. 60 Comment
  UC1607652  Chenopodium ambrosioides Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10883 Contra Costa just w Antioch marina (levee at n-center of preserve, at end of road); Dow Wetlands Preserve Comment
  UC2012996  Chenopodium berlandieri Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14926 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  UC1136381  Chenopodium californicum H. S. Yates 1936-3-14 5365 Contra Costa 2 1/2 mi sw Round Valley; Mt. Diablo Quadrangle Comment
  PASA2694  Chenopodium californicum Annetta Carter 1929-3-31 137 Contra Costa Near Clayton; hills north of Mt. Diablo Comment
  UCR13095  Chlorogalum pomeridianum Robin Maetche, Geoffrey Matthews 1971-7-4 s.n. Contra Costa 1 mi below North [Gate Road] entrance to Mt. Diablo State Park, Concord 427 Comment
  JEPS57664  Chorizanthe membranacea W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mount Diablo Comment
  UC692213  Chorizanthe membranacea Mary L. Bowerman 1938-5-28 3636 Contra Costa North Road 4.7 mi from North Gate (Mount Diablo); Mount Diablo 411 Comment
  RSA392753  Chorizanthe membranacea L. S. Rose 1941-5-15 41230 Contra Costa Mt. Diablo, w. slope 396 Comment
  UC188732  Chorizanthe uniaristata M. K. Curran 1884-1 Contra Costa near Mount Diablo; near Mount Diablo Comment
  OBI3333  Chrysolepis chrysophylla var. minor Neil Havlik 1969-3-25 305 Contra Costa Below Villanova Rd, Oakland HIlls Comment
  CAS-BOT-BC284424  Cirsium brevistylum Alice Eastwood 1931-5-30 18618 Contra Costa Oak Spring Comment
  POM215028  Cirsium brevistylum Alice Eastwood 1931-5-30 18618 Contra Costa Oak Spring Comment
  CDA19886  Cirsium cymosum J. Vargas 2002-6-4 PDR P 099530 Contra Costa Northern California; Sin. loc. 0 Comment
  CAS-BOT-BC279963  Cirsium douglasii var. douglasii Mary L. Bowerman 1932-11-26 1675 Contra Costa Mount Diablo. Maple Spring (west road) Comment
  OBI73068  Cirsium occidentale David J. Keil, with Barbara Ertter et al. 2000-6-18 28815 C Contra Costa Mount Diablo State Park. Lower part of Jumper Trail above Laurel Dell picnic area 914 Comment
  JEPS99955  Cirsium vulgare A. Langston 2003-7-28 AL 75 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD159457  Cirsium vulgare D. S. Park; K. Yeo 2010-8-7 211 Contra Costa Mt. Wanda hiking trail entrance. Under overpass. 85 Comment
  CAS-BOT-BC162565  Clarkia affinis John Thomas Howell 1931-5-12 6483 Contra Costa North side of Mt. Diablo Comment
  UC1795900  Clarkia affinis Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14639 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; grassy hillside. Comment
  UC2070449  Clarkia affinis Barbara Ertter with Steve Matson 2003-5-31 18179 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, Coal Canyon. Comment
  SBBG40396  Clarkia amoena W. J. Dress 1951-7-3 3466 Contra Costa near rd a few mi S of Moraga 152 Comment
  RSA0059973  Clarkia amoena subsp. amoena H. de Forest 1930-6-29 s.n. Contra Costa Dry bank on Tunnel Rd. Comment
  CDA9430  Clarkia biloba D. G. Kelch 1999-6-23 99 .001-D Contra Costa Carquinez Strait; Vaca Canyon along Alhambra Valley Road about 1.5 mile East of Pig Sale. Comment
  JEPS43663  Clarkia biloba W. L. Jepson 1918-6-3 7585 Contra Costa Donner Canyon Mt. Diablo Comment
  UC85528  Clarkia biloba Katharine Brandegee 1907-7-4 Contra Costa between Martinez and Port Costa Comment
  UC2070450  Clarkia biloba Barbara Ertter 2002-6-22 17825 Contra Costa Donner Basin on north side of Mount Diablo, Falls Loop Trail south of Wild Oat Canyon. Comment
  JEPS43618  Clarkia concinna subsp. concinna W. L. Jepson 1923-6-10 9987 Contra Costa Upper Marsh Creek Mt. Diablo Comment
  CDA38704  Clarkia gracilis subsp. gracilis D. G. Kelch 2007-6-3 7 .43 Contra Costa East Bay; Along gated portion of Hampton Rd N of San Pablo Reservoir. Comment
  RSA60760  Clarkia purpurea subsp. purpurea Edward L. Greene 1889-05 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC172559  Clarkia purpurea subsp. purpurea Mary L. Bowerman 1933-6-14 2270 Contra Costa Curry-Cave Canyon, ridge between two main forks, Mount Diablo Comment
  UC692441  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1931-5-19 875 Contra Costa Donner Canyon trail Mount Diablo Comment
  UC692485  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1933-5-18 2122 Contra Costa Blackberry Spring Mount Diablo Comment
  UC1279947  Clarkia rubicunda Peter H. Raven 1957-7-5 11049 Contra Costa 0.2 mi from tip Point Richmond 106 Comment
  CAS-BOT-BC165036  Clarkia rubicunda Rimo Bacigalupi s.n. Contra Costa Head of Bear Creek Valley, northern Contra Costa Co. Comment
  UC2012964  Clarkia rubicunda Barbara Ertter with Travis Columbus 1990-6-10 9103 Contra Costa NE corner of Briones Regional Paark, Briones Hills W of Pleasant Hill, jct of Briones Crest and Table Top trails E of Briones Peak. Comment
  POM32263  Clarkia rubicunda subsp. blasdalei Katherine Brandegee 1908-7-3 s.n. Contra Costa Point Isabel, north side Comment
  POM262830  Clarkia unguiculata Herbert McLean Evans 1923-05 s.n. Contra Costa Mount Diablo Comment
  RSA458865  Clarkia unguiculata Thekla Mohr 1917-07 3249 Contra Costa Mount Diablo Comment
  SEINET10492200  Clarkia unguiculata Tim Holtsford 1992-6-13 Holtsford 920613 -1 Contra Costa Morgan territory rd, se of concord, 1.35 mi s of marsh creek rd (clayton rd), 0.1 Mi n of shale cliff court. Roadside pop, n-facing slope with oaks, digger Pines, poison oak. Most flowering over, fruits still green. Comment
  UCD32418  Clarkia unguiculata Beecher Crampton 1950-5-13 574 Contra Costa Southwest Walnut Creek. 30 Comment
  CAS-BOT-BC439172  Claytonia exigua subsp. exigua L. R. Abrams 1921-5-25 8023 Contra Costa Summit, Mt Diablo Comment
  CHSC93813  Claytonia exigua subsp. exigua K. L. Chambers 1977-4-1 4266 Contra Costa Mt. Diablo. On trail to Deer Flat from the summit road, ca. 1/8 mile above Deer Flat. Comment
  UC412616  Claytonia exigua subsp. exigua E. W. Hicks 1917-3-24 113 Contra Costa w shoulder Mt. Diablo 609 Comment
  UC7852  Claytonia exigua subsp. exigua Brewer 1056 Contra Costa Mt. Diablo Comment
  UC7885  Claytonia exigua subsp. exigua W. H. Brewer 1862-5-7 1056 Contra Costa Mount Diablo Comment
  UC7935  Claytonia exigua subsp. exigua W. H. Brewer 1862-5-7 1059 Contra Costa Summit of Mt. Diablo; Mt. Diablo Comment
  UC7939  Claytonia exigua subsp. exigua State Survey 1862-5-7 1059 Contra Costa Mt. Diablo Summit Comment
  POM164051  Claytonia exigua subsp. exigua C. F. Baker 1903-4-28 4624 Contra Costa Mitchell s canon, Mt. Diablo. Comment
  UCD102390  Claytonia gypsophiloides Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 880 Comment
  POM164052  Claytonia gypsophiloides Edward L. Greene 1903-4-28 4611 Contra Costa Mitchell s canon, Mt. Diablo. Comment
  CAS-BOT-BC439438  Claytonia parviflora subsp. parviflora Alice Eastwood 1915-5-30 4515 Contra Costa Mt. Diablo Comment
  UC1745429  Claytonia parviflora subsp. parviflora Annetta M. Carter, Leo Bowerman 1935-6-1 869 Contra Costa Mt. Diablo. Main ridge running W from peak. 975 Comment
  UC692536  Claytonia parviflora subsp. parviflora Mary L. Bowerman 1933-5-3 1966 Contra Costa Mountain Springs Canyon Mount Diablo (just below the deer trough (Pioneer Road)) Comment
  POM225662  Claytonia perfoliata J. T. Howell 1931-3-10 5755 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road. Comment
  JEPS112035  Claytonia perfoliata subsp. perfoliata D. G. Kelch 2003-3-21 03 .54 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  JEPS99970  Claytonia perfoliata subsp. perfoliata S. O'Neil 2003-2-18 SEO 5 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1300963  Claytonia perfoliata subsp. perfoliata Helen K. Sharsmith 1962-3-25 4910 Contra Costa hills between Happy Valley and Alhambra Valley; San Francisco Bay Region 304 Comment
  UC1745809  Claytonia perfoliata subsp. perfoliata Annetta M. Carter, Edward Lee 1935-3-29 756 Contra Costa Marsh Creek Rd., 1.2 mi. E of Clayton. Comment
  UC7890  Claytonia perfoliata subsp. perfoliata W. H. Brewer 1862-5-12 1080 Contra Costa 609 Comment
  UC1050592  Clematis cirrhosa N. Floy Bracelin 1942-2-22 1942 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  OBI19648  Cleome hassleriana Harry Morten 1964-10-11 s.n. Contra Costa Lower end of San Joaquin Valley, 5 mi E of Byron Comment
  RSA0028269  Clinopodium vulgare Barbara Ertter, David Gowen 2012-6-9 21018 Contra Costa Lower Vollmer Peak Trail paralleling South Drive, southeastern Tilden Park in Berkeley Hills. 426 Comment
  CAS-BOT-BC499321  Clintonia andrewsiana Walter Knight; Irja Knight 1988-5-21 6129 Contra Costa Redwood Regional Park, between pipe bridge and single curb bridge along Stream Trail 274 Comment
  SEINET9290098  Clytostoma callistegioides Unknown 2009-6-3 Contra Costa Residence in San Ramon, California. See USCH plant ID files. Plant sent to USCH for identification. Query letter included on specimen. Comment
  UCD123532  Collinsia bartsiifolia Annetta M. Carter 1933-4-23 299 Contra Costa above the San Joaquin River, between Antioch Bridge and Antioch. Comment
  JEPS5870  Collinsia bartsiifolia var. bartsiifolia Fred Shoemaker 1938-4-11 Contra Costa 3 mi w Byron Comment
  RSA408401  Collinsia bartsiifolia var. bartsiifolia H. de Forest 1930-4-6 s.n. Contra Costa [Unspecified] Comment
  UC1301183  Collinsia heterophylla Helen K. Sharsmith 1962-4-18 4949 Contra Costa vicinity of Martinez (near McEwen Road); San Francisco Bay Region 106 Comment
  UC1733835  Collinsia heterophylla Kay H. Beach 1941-4-30 1079 Contra Costa 5 mi W of Byron; Marsh Creek Road 30 Comment
  UC1301187  Collinsia sparsiflora var. collina Helen K. Sharsmith 1963-3-3 5192 a Contra Costa near Moraga (Las Trampas Canyon E of St. Mary's College); Las Trampas Canyon 259 Comment
  UC672470  Collinsia sparsiflora var. collina Herbert L. Mason 1929-3-15 5051 Contra Costa Nortonville Comment
  UC691587  Collinsia tinctoria Mary L. Bowerman 1930-6-7 271 Contra Costa Summit of Mount Diablo Comment
  UC908741  Collomia heterophylla Herbert L. Mason 1928-4-15 4361 Contra Costa woods along trail Moraga Ridge Comment
  UCD164881  Conium maculatum Henry House 1995-5-20 1995- 13 Contra Costa Adjacent to Walnut Blvd., approximately 1.25 km south of Marsh Creek Road. 30 Comment
  UC141630  Convolvulus simulans Katharine Brandegee 1907-6-16 Contra Costa fields bet. Antioch and Marsh Creek Comment
  JEPS111678  Conyza bonariensis D. G. Kelch 2003-8-13 03 .119 Contra Costa Martinez - Train Station 2 Comment
  JEPS99954  Conyza bonariensis A. Langston 2003-9-16 AL 89 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA21753  Conyza canadensis D. G. Kelch, A. G. Murdock 2005-7-14 5 .463 Contra Costa Carquinez Strait Region; Arroyo del Hambre; Franklin Creek near Glen Frazier. Comment
  HSC33256  Conyza canadensis A. M. Montalvo, J. D. Ackerman 1974-12-1 435 Contra Costa Walnut Creek, Olympic Dr. between Tice Valley Rd. and Pleasant Hill Rd. Comment
  JEPS77538  Cordylanthus mollis subsp. mollis Charles Patterson June, 1978 Contra Costa tidal marsh near Shore Acres; West Pittsburg Comment
  JEPS95193  Cordylanthus mollis subsp. mollis Jake Ruygt 1993-9-3 Contra Costa w of Hastings Slough (Concord Naval Weapons Station) Comment
  RSA136731  Cordylanthus pilosus subsp. pilosus J. T. Howell 1955-8-24 30902 Contra Costa Near Diablo County Club, south base of Mt. Diablo. Comment
  SEINET12765203  Cordylanthus pilosus subsp. pilosus Barbara Ertter, Lynne Hosley 1992-8-29 11266 Contra Costa East of Moutn Diablo in canyon along Coyote Trail.; 0 Comment
  POM181454  Cornus californica I. L. Wiggins 1930-4-18 4593 Contra Costa East end of Jersey Island. Comment
  UC192419  Cornus glabrata E. L. Greene 1886-5-25 Contra Costa Walnut Creek Comment
  UC692511  Cornus glabrata Mary L. Bowerman 1931-5-28 904 Contra Costa Pine Canyon Mt. Diablo (gully at e. end of Castle Rock Farm); , Pine Canyon Comment
  CAS-BOT-BC209592  Cornus sericea Barrett Anderson 1987-4-30 3489 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  UC407389  Coronopus didymus Ira L. Wiggins 1930-4-18 4595 Contra Costa e end of Jersey Island, Fallow cornfield Jersey Island Comment
  JEPS96226  Cortaderia jubata Barbara Ertter 1991-9-28 10854 Contra Costa e. end of Schmidt St. at recycling center El Cerrito (s. end of Hillside Natural Area) Comment
  UC2028523  Cortaderia jubata Barbara Ertter 1997-9-14 15814 Contra Costa Southwest side of Mount Diablo, Secret Trail at head of Pine Canyon. Comment
  CAS-BOT-BC190075  Cortaderia selloana Walter Knight 1978-9-19 3247 Contra Costa Browns Island. South Landing. Comment
  UCSB26540  Corylus cornuta subsp. californica Keefe, Joseph 1967-3-20 Contra Costa Along Huckleberry Trail, 0.5 mile east of Skyline Boulevard, east of Grizzly Peak Boulevard, east of Berkeley 274 Comment
  CDA39608  Corylus cornuta var. californica D. G. Kelch 2003-8-13 3 .126 Contra Costa Carquinez Strait; Vaca Canyon. Comment
  UC2028097  Cosmos bipinnatus Barbara Ertter 1996-9-19 15290 Contra Costa Cerrito Creek at base of Albany Hill, just west of San Pablo Avenue. Comment
  UC2028952  Cotoneaster pannosus Barbara Ertter 2000-7-16 17388 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC2032803 Image available Cotula australis Doran, Andrew Scott 2012-3-20 673 Contra Costa Brooks island loading dock, North side of island. Comment
  JEPS111659  Cotula coronopifolia A. G. Murdock 2004-3-19 232 Contra Costa Hercules - Carbon 50 Comment
  UCD159506  Cotula coronopifolia D. S. Park 2010-9-11 254 Contra Costa Growing along roadside in overflow from wetlands. Rancid water. 5 Comment
  CAS-BOT-BC291337  Cotula coronopifolia Walter Knight; et al 1979-4-13 3359 Contra Costa Point Emmet, Browns Island Comment
  HSC5425  Cotula coronopifolia Greg Bos 1963-4-14 75 Contra Costa Bayshore Freeway at Central Ave., Richmond 0 Comment
  SBBG122841  Crassula aquatica M. Bowerman 1975-9-14 Contra Costa Hidden Pond, Mt Diablo Comment
  RSA721594  Crassula aquatica Mary L. Bowerman 1975-9-14 s.n. Contra Costa Mount Diablo. Comment
  UC2028185  Crassula aquatica Barbara Ertter 1998-5-3 16059 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  UC692558  Crassula connata var. subsimplex Mary L. Bowerman 1932-2-28 1093 Contra Costa ridge e. of Rhine Canyon (grassy flat near saddle, Mt. Diablo); Mt. Diablo 579 Comment
  CDA4469  Crepis bursifolia G. D. Barbe 1978-7-2 2405 Contra Costa 2800 block of East Street between Sycamore and Maple Avenue, Concord. 0 Comment
  JEPS100089  Crocanthemum scoparium var. vulgare G. Smick 2003-4-1 GAS 112 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS79011  Croton californicus Edward Lee with Annetta Carter 1935-10-17 1626 Contra Costa Antioch; dunes Comment
  JEPS79012  Croton californicus Edward Lee with Annetta Carter 1935-10-17 1626 Contra Costa Antioch; dunes Comment
  RSA201184  Croton californicus Peter Rubtzoff 1951-10-7 827 Contra Costa Along lower San Joaquin River, east of Antioch. Comment
  UCD141957  Croton californicus Peter Rubtzoff 1954-9-14 1755 Contra Costa Along lower San Joaquin River, East of Antioch. Comment
  JEPS99569  Crypsis schoenoides Mary Bowerman 1993-10-22 Contra Costa Mount Diablo, Pine Pond. Comment
  UCD59835  Crypsis schoenoides G. F. Hrusa; D. Crowe, R. York 1998-7-17 14726 Contra Costa Sacramento-San Joaquin River Delta. East side of Antioch-Pittsburg Hwy at east end of Dow Chemical property. 12 Comment
  SEINET11268164  Crypsis schoenoides Barbara Ertter, Chris Thayer 1996-10-25 15360 Contra Costa NW flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park, intermittent surface water left in shaded stream in valley oak woodland and grassland.; 0 91 Comment
  CAS-BOT-BC190136  Crypsis vaginiflora Walter Knight 1977-7-20 s.n. Contra Costa Briones Ridge, Briones Regional Park. 304 Comment
  CDA31171  Cryptantha clevelandii var. clevelandii D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .224 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  RSA0029675  Cryptantha corollata Barbara Ertter, Susan D Alcamo 1998-6-12 16165 Contra Costa North Peak Trail from Devil s Elbow on SE side of Mount Diablo summit, steep rocky S-facing bowl. 1037 Comment
  UC24711  Cryptantha intermedia unknown 1900-3-24 Contra Costa Oakley Comment
  UC79469  Cryptantha microstachys Katharine Brandegee Apr 1889 Contra Costa Antioch Comment
  JEPS108227  Cryptantha nevadensis David Gowen 2005-5-6 283 Contra Costa Mt. Diablo State Park. Rocky outcrops on the south side of North Peak. Comment
  UC691392  Cryptantha nevadensis var. rigida Mary L. Bowerman 1931-5-7 808 a Contra Costa North Peak Mount Diablo Comment
  UC691393  Cryptantha nevadensis var. rigida Mary L. Bowerman 1932-4-9 1331 Contra Costa Mount Diablo; Inner Black Hills, small ridge E of S spur on meridian Comment
  UC763023  Cryptantha nevadensis var. rigida R. F. Hoover 1938-5-4 3348 Contra Costa Peak E of Tassajero Creek 762 Comment
  CDA33503  Cuscuta japonica Naing/Yost 2009-6-21 PDR# 1503038 Contra Costa Rodeo; 1380 San Pablo Ave. 0 Comment
  CDA39961  Cuscuta japonica Niang/Slattengreen 2008-8-2 PDR# 1454023 Contra Costa El Sobrante; 5741 Skyview Place (near Richmond city limits?) 0 Comment
  UCD126364  Cuscuta pacifica var. pacifica G. Thomas Robbins 1959-9-13 4163 Contra Costa northeastern edge of San Pablo Bay, just east of Hercules. Comment
  UCD126330  Cuscuta salina Robert E. Preston; Eva Buxton 1994-8-4 677 Contra Costa east end of Briones Valley, west of Marsh Creek Reservoir. 60 Comment
  UC562481  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 C Contra Costa Franklin Canyon 152 Comment
  UC562677  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 Contra Costa Franklin Canyon 152 Comment
  UCD18453  Cuscuta subinclusa Glen Holstein 2000-7-27 s.n. Contra Costa SE El Sobrante, NE side of San Pablo Ridge. Comment
  UCD144310  Cynara cardunculus G. F. Hrusa; D. Crowe 1998-5-8 14357 Contra Costa Sacramento-San Joaquin River Delta. Dow Chemical property at Pittsburg. 5 Comment
  UCD33766  Cynara cardunculus Beecher Crampton 1972-11-21 8888 Contra Costa 2 miles east of Crockett. Comment
  UC2013065  Cynara cardunculus Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14927 Contra Costa Northwest base of Mount Diablo access to Foothills Regional Park from North Gate road along Little Pine Creek. Comment
  CDA4495  Cynara scolymus R. Langston 1980-6-26 Contra Costa At junction of Arlington and Marin Avenues, San Pablo. 0 Comment
  CHSC23352  Cynodon dactylon Willis Ball 1975-5-15 527 Contra Costa Contra Loma Regional Park. In area #1 ca. 3 yds w of restroom facility at s end of reservoir. In lawn by beach area. 30 Comment
  CDA43393  Cynosurus echinatus D. G. Kelch 2012-5-27 12 .074 Contra Costa Carquinez Strait Region; Pinole Valley Park. Comment
  RSA721595  Cynosurus echinatus Mary L. Bowerman 1975-6-7 s.n. Contra Costa Mount Diablo. Big Spring. Comment
  UC2028466  Cynosurus echinatus Barbara Ertter 1997-8-24 15769 Contra Costa Southwest side of Mount Diablo, Rock City area Comment
  UC1563866  Cyperus eragrostis Barbara Ertter 1989-9-30 8864 Contra Costa e. El Cerrito (ca. 1 1/4 mi. n.w. of Inspiration Point, E. Bay Skyline Nat'l Recreation Trail (= Nimitz Way), Tilden Regional Park); Tilden Regional Park Comment
  UC665689  Cyperus eragrostis Thomas Morley 1940-12-3 90 Contra Costa banks at upper end San Leandro Lake (near mouth of Redwood Creek) 129 Comment
  CAS-BOT-BC114615  Cyperus eragrostis Walter Knight; Harry Reeves 1979-8-25 3407 Contra Costa In natural marsh E of reservoir. Contra Loma Regional Park near Antioch. 22 Comment
  CAS-BOT-BC113833  Cyperus niger Louis C. Wheeler 1952-10-2 7000 Contra Costa Mount Diablo: ca/ 0.8 mile up from Turtle Ranch, ca. 1 mi downhill from divide in road. Comment
  UC2028449  Cyperus niger Barbara Ertter with Chris Thayer 1996-10-25 15387 Contra Costa West side of Mount Diablo, South Gate Road just south of junction at Mountain House Creek crossing Comment
  CAS-BOT-BC110840  Cyperus strigosus Walter Knight; I. Knight; E. McClintock; J. T. Howell; B. Doyle; P. Rae 1978-9-5 3226 Contra Costa Browns Island, Botany Cove Comment
  UC692656  Cypselea humifusa Mary L. Bowerman 1935-9-13 3337 Contra Costa Mount Diablo, Hidden Pond Hidden Pond; Mount Diablo, Hidden Pond Comment
  CDA42428  Cytisus striatus D. G. Kelch, Vince Guise 2012-7-26 12 .236 Contra Costa Wildcat Canyon Park, Alvarado Unit. Comment
  JEPS21826  Danthonia californica Louise Elsenius 1958-5-17 6 Contra Costa ne Terrace-Bates intersection; El Cerrito 60 Comment
  RSA0027405  Datura stramonium Barbara Ertter 1999-8-21 16790 Contra Costa Former reservoir upstream from mouth of Mitchell Canyon. Comment
  CDA965  Daucus pusillus D. G. Kelch 2005-6-14 5 .333 Contra Costa East Bay; San Pablo. North Alvarado Park, south of San Pablo Dam Rd. Comment
  JEPS111615  Daucus pusillus D. G. Kelch 2004-5-9 04 .206 Contra Costa Crockett - Upper Edwards Canyon, above Crockett Blvd 160 Comment
  UC691894  Daucus pusillus Mary L. Bowerman 1931-5-21 878 Contra Costa Curry-Cave Point trail Mt. Diablo; , Curry-Cave Point trail 304 Comment
  SBBG40548  Deinandra bacigalupii R. F. Hoover 1969-8-29 11564 Contra Costa Raymond Rd and Ames St, Livermore Valley Comment
  CAS-BOT-BC287375  Deinandra corymbosa H. M. Hall 1914-8-23 9862 Contra Costa Giant 22 Comment
  UCD36025  Deinandra corymbosa Beecher Crampton 1949-6-5 470 Contra Costa along Highway 40, Pinole to San Pablo, above Garrity Creek, on top of West Hills. 30 Comment
  CAS-BOT-BC294023  Deinandra kelloggii H. M. Hall 1930-6-18 12793 Contra Costa Stockton Ranch, south of Antioch Comment
  UC1795685  Deinandra kelloggii Barbara Ertter, Chris Thayer 1994-5-19 12783 Contra Costa Roadside opposite east end of Antioch Dunes, south side of Wilbur Avenue north of railroad tracks east of Antioch Comment
  JEPS62625  Deinandra lobbii Elsie M. Zeile 1921-9-17 Contra Costa Rodeo Comment
  CAS-BOT-BC291812  Deinandra lobbii Elsie M. Zeile 1921-9-17 s.n. Contra Costa Rodeo Comment
  JEPS105695  Deinandra lobbii David Gowen 2004-5-29 101 Contra Costa Lime Ridge Open Space. Summit area just south of the antenna facility. Comment
  SEINET9288997  Delairea odorata Unknown 1999-12-20 1219291 Contra Costa Along Wildcat Canyon Rd., 1.9 mi NW of intersection of Wildcat Canyon Rd and Dam Rd. vicinity of Orinda. Comment
  UCD95639  Delphinium californicum P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  JEPS20341  Delphinium californicum W. L. Jepson 1918-6-3 7587 Contra Costa n slopes of mt Mt. Diablo, Donner Canyon (by dead streamlet in bottom of canyon) 685 Comment
  UC1795684  Delphinium californicum subsp. interius Barbara Ertter, Mary L. Bowerman 1994-6-19 12841 Contra Costa Mt. Diablo State Park east of Walnut Creek; Muir Picnic Area on Summit Road, 1005 Comment
  CAS-BOT-BC8749  Delphinium hansenii H. Lewis; C. Epling 1947-5-4 703 Contra Costa Marsh Creek Road, 5.8 mi. east of Curry Creek Park Road Comment
  RSA148112  Delphinium hansenii Harlan Lewis, C. Epling 1946-5-5 605 Contra Costa 0.5 miles S of Somersville Comment
  JEPS105716  Delphinium hansenii subsp. hansenii David Gowen 2004-5-1 55 Contra Costa Black Diamond Mines Regional Preserve. North-facing slopes above Lower Oil Canyon road. Comment
  JEPS6231  Delphinium hesperium subsp. hesperium Willis L. Jepson May 23-24 1891 21394 Contra Costa Mt. Diablo Comment
  RSA0029677  Delphinium hesperium subsp. hesperium Barbara J. Ertter, Richard K. Brummitt 1998-5-13 16137 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, head of SE branch of Loughler Loop Trail. 305 Comment
  CAS-BOT-BC10010  Delphinium hesperium subsp. pallescens E. Wright 1917-6-1 S. N. Contra Costa Mt. Diablo Comment
  UC912567  Delphinium hesperium subsp. pallescens H. L. Mason 1928-4-29 4423 Contra Costa s slope of mt Mount Diablo, Sycamore Canyon Comment
  CAS-BOT-BC10013  Delphinium hesperium subsp. pallescens John Thomas Howell 1931-5-12 6482 Contra Costa North Side of Mt. Diablo Comment
  CAS-BOT-BC10015  Delphinium hesperium subsp. pallescens John Thomas Howell 1931-5-12 6482 Contra Costa North side of Mt. Diablo Comment
  LA38169  Delphinium hesperium subsp. pallescens Lewis; Mehlquist 455 Contra Costa Just E of the Antioch Golf Couse Comment
  UC2027941  Delphinium hesperium subsp. pallescens Barbara Ertter with Alan Whittemore, Joanne Kerbavaz, et al. 2001-5-22 17646 Contra Costa South side Mount Diablo, Sycamore Creek Road at Devils Slide area. Comment
  CAS-BOT-BC9901  Delphinium nudicaule Rimo Bacigalupi 1926-4-30 1353 Contra Costa Summit of Mount Diablo Comment
  CAS-BOT-BC9917  Delphinium nudicaule Alice Eastwood 1915-5-30 4501 Contra Costa Mt. Diablo Comment
  UC765793  Delphinium nudicaule R. F. Hoover 1938-5-4 3340 Contra Costa Marsh Creek Canyon Comment
  JEPS21836  Delphinium patens Bryce G. Decker 1958-4-20 43 Contra Costa hillside meadow above 60 Oak Drive; Orinda Comment
  UC536012  Delphinium patens Laurence S. Jones 1934-4-8 58 Contra Costa w slope of mt approximately 3 mi surface distance from peak; Mt. Diablo 609 Comment
  UCD102398  Delphinium patens Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 890 Comment
  HSC47898  Delphinium patens H. Lewis, Carl Epling 1944-5-6 Contra Costa 5.7 mi. S of Marsh Creek Rd. on Beck rd. to Livermore Comment
  JEPS51668  Dendromecon rigida H. H. Haworth 1917-3-3 Contra Costa Maraga Ridge Comment
  UCSB25081  Dendromecon rigida Rieser, D. 1966-4-2 Contra Costa New Bear Creek Road, 2 mi. north of Old Dam Rd., Orinda 304 Comment
  UC2028474  Deschampsia cespitosa subsp. holciformis Barbara Ertter with Richard K. Brummitt 1998-5-6 16097 Contra Costa Antioch Marina, edge of brackish marsh Comment
  CAS-BOT-BC192678  Deschampsia danthonioides Ira L. Wiggins 1930-4-17 4576 Contra Costa 1/4 mi S. of Byron Comment
  UC33546  Dicentra chrysantha V. K. Chesnut before August, 1901 Contra Costa Mt. Diablo Comment
  RSA128442  Dicentra chrysantha Joanne Taylor 1941-7-18 19 Contra Costa Nortonville. 244 Comment
  UC30118  Dichelostemma capitatum W. C. Blasdale 1896-2-28 Contra Costa Clayton Comment
  UC3346  Dichelostemma capitatum W. H. Brewer May 1862 1069 Contra Costa Mount Diablo Comment
  CAS-BOT-BC500075  Dichelostemma capitatum Barrett Anderson 1987-4-30 3503 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole Dam site for EBMUD. 125 Comment
  CAS-BOT-BC500088  Dichelostemma capitatum Miss E. Cannon 1891-5-1 s.n. Contra Costa Orinda Park Comment
  UC1300935  Dichelostemma congestum Helen K. Sharsmith 1962-5-20 5071 Contra Costa ne slope Mount Diablo (Headwaters of Marsh Creek); San Francisco Bay Region, , Marsh Creek 304 Comment
  CAS-BOT-BC500922  Dichelostemma volubile W. R. Dudley 1893-1-1 s.n. Contra Costa Mount Diablo Comment
  CAS-BOT-BC150327  Diplacus aurantiacus L. R. Abrams 1916-6-30 5704 Contra Costa Mt. Diablo Comment
  CDA37269  Dirca occidentalis D. G. Kelch 2010-1-17 10 .31-B Contra Costa Carquinez Strait Region; Upper North Fork of Rodeo Creek, immediately west of Cummings Skyway. Comment
  JEPS77000  Dirca occidentalis Robert M. Lloyd 1963-3-17 2131 Contra Costa Skyline Drive 0.5 mi e intersection with Grizzly Peak Road (across from 7090 Skyline, Huckleberry trail) Comment
  JEPS78104  Dirca occidentalis G. W. Zamzow 1973-2-23 126 Contra Costa Wildcat Canyon East Bay Regional Park Comment
  OBI3339  Dirca occidentalis Neil Havlik 1969-3-25 310 Contra Costa On the NE slope of Grizzly Peak 488 Comment
  SEINET6957397  Dirca occidentalis Lorin I. Nevling 1996-2-15 342 Contra Costa Tilden Regional Park, Regional Parks Botanical Garden. Cultivated plant grown from seed from Crockett Road, south of Crocket (see Accession card). "Western Leatherwood." Comment
  UCSB25834  Dirca occidentalis Keefe, Joseph 1967-3-20 Contra Costa Huckleberry Trail, 0.5 mile east of Skyline Boulevard, near intersection with Grizzly Peak Boulevard, east of Berkeley 274 Comment
  CDA39313  Disporum hookeri A. G. Murdock 2003-6-2 83 Contra Costa Carquinez Strait Region; Franklin Canyon - McHarry Ranch Rd. Comment
  UC1300913  Disporum hookeri Helen K. Sharsmith 1963-3-3 5184 Contra Costa e of St. Mary's College near Moraga (Las Trampas Canyon); San Francisco Bay Region, Las Trampas Canyon 259 Comment
  UC792336  Disporum hookeri J. A. Rattenbury 1948-4-13 111 Contra Costa on s side of highway above creek 1/2 mi e of Oakland Tunnel 213 Comment
  CAS-BOT-BC208654  Distichlis spicata A. A. Beetle 1941-6-24 s.n. Contra Costa Point Richmond on San Francisco Bay Comment
  CDA18042  Dittrichia graveolens R. M. Case 1999-12-29 PDR 031726 Contra Costa Vicinity Concord at Vanacio Reservoir. 0 Comment
  CDA37339  Dittrichia graveolens D. G. Kelch 2010-10-31 10 .444 Contra Costa Valley north of Alhambra Valley Rd., south of Pinole Peak, east of Hercules. Comment
  CHSC99232  Dittrichia graveolens John Dittes 2006-10-26 1412 Contra Costa San Joaquin Valley (foothills near nw edge); ca. 2.0 air miles south of Marsh Creek Gauging Station, 1.6 air miles south of Marsh Creek Reservoir Gauging Station, 1.6 air miles southwest of Intersection of Camino Diablo and Vasco Road; Contra Costa Water District's Los Vaqueros Watershed Mitigation Project Area. 67 Comment
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Aug 22 2009
  RSA6497  Dodecatheon clevelandii subsp. patulum D. D. Keck 1933-4-2 1997 Contra Costa Vasco Rd., south of Vasco School. Comment
  UC2036955  Dodecatheon clevelandii subsp. patulum Mary L. Bowerman 1946-3-10 4085 Contra Costa Common in steep open grassy hillside toward west end of Shell Ridge. Also some plants on northerly face of ridge further east. Comment
  JEPS99973  Dodecatheon hendersonii S. O'Neil 2003-3-11 SEO 7 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  POM203314  Dodecatheon hendersonii subsp. cruciatum J. T. Howell 1931-3-10 5756 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road. Comment
  JEPS17887  Downingia insignis Rimo Bacigalupi with G. T. Robbins 1956-3-26 5531 Contra Costa about 2.5 mi s Byron (just s of S.P.R.R. crossing on road to Bethany, near head of Italian Slough) 6 Comment
  UC1188738  Downingia insignis John H. Weiler 1961-4-9 6174 Contra Costa 3 mi w Byron (on the w side of the road) Comment
  RSA610775  Downingia insignis L. S. Rose 1936-4-24 36154 Contra Costa 8 miles S of Antioch. 30 Comment
  UC909625  Downingia insignis Kay H. Beach 1941-4-30 1082 Contra Costa Comment
  JEPS14440  Downingia pulchella W. L. Jepson May 23 1891-May 24 1891 21212 Contra Costa Mt. Diablo Comment
  UC1188727  Downingia pulchella John H. Weiler 1959-4-11 5947 Contra Costa se of Martinez (near the airport along State Highway 24) Comment
  UC2027994  Draba verna Barbara Ertter with Tony Morosco 1998-4-12 16024 Contra Costa Mount Olympia on north side of Mount Diablo, midway down Olympia Road from summit. Comment
  CDA42719  Dryopteris arguta A. G. Murdock 2004-2-12 205 Contra Costa Franklin Canyon - McHarry Ranch Road. Comment
  UC692114  Dryopteris arguta Mary L. Bowerman 1930-8-24 427 Contra Costa lower trail Mitchell Canyon; Mt. Diablo 259 Comment
  CAS-BOT-BC70863  Dryopteris arguta D. E. Breedlove 1970-4-18 17443 Contra Costa north edge of Lafayette above Laurel Drive 243 Comment
  RSA0068493  Dryopteris arguta Katie Gallagher, Nick Jensen 2014-4-26 181 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  UCD136461  Dryopteris arguta Herbert L. Mason 1924-11-23 1166 Contra Costa Las Trampas Ridge. Comment
  UC1357009  Dudleya farinosa C. H. Uhl 1954-6-1 360 Contra Costa Richmond Point Comment
  UC1818961  Echinochloa crus-galli Barbara Ertter 1995-8-19 14502 Contra Costa Edge of Cerrito Creek on north side of Albany Hill, south edge of El Cerrito; dense weeds at edge of sluggish water. Comment
  UC2028441  Echinochloa crus-galli Barbara Ertter with Chris Thayer 1996-10-25 15364 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  SEINET3407322 Image available Echinocystis fabacea var. agrestis Lewis S. Rose 1933-5-13 33165 Contra Costa Marsh creek, Contra Costa County Comment
  RSA756015  Eichhornia crassipes Barbara Ertter 1990-9-16 9642 Contra Costa Junction of Cypress Road and Jersey Island Road east of Oakley. Comment
  SEINET3892197  Eichhornia crassipes K. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4958 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  UC1606336  Elatine californica Barbara Ertter, Brad Olson 1991-9-28 10829 Contra Costa betw Orinda and El Sobrante San Pablo Reservoir Comment
  UC692626  Elatine californica Mary L. Bowerman 1935-7-22 3186 Contra Costa s side Meridian Peak (Hidden Pond); Mount Diablo Comment
  JEPS99512  Eleocharis acicularis Mary L. Bowerman 1975-9-14 s. n. Contra Costa Hidden Pond, Mount Diablo Comment
  UC691970  Eleocharis macrostachya Mary L. Bowerman 1938-5-28 3645 Contra Costa Maple Spring, on upper margin especially in the NW corner Mount Diablo Comment
  CAS-BOT-BC112794  Eleocharis macrostachya Barrett Anderson 1987-4-29 3484 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  SEINET10747423  Eleocharis macrostachya Barbara J. Ertter 1991-9-28 Ertter 10836 Contra Costa San Pablo Reservoir between Orinda and El Sobrante, dried mud flats at S en of reservoir, 91 Comment
  UC756632  Elymus G. L. Stebbins Jr. 1946-6-9 3657 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) Comment
  UC756633  Elymus G. L. Stebbins Jr. 1946-6-9 3659 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) Comment
  POM357109  Elymus X gouldii Glenn A. Gorelick 1967-5-13 s.n. Contra Costa Point Richmond Comment
  JEPS99562  Elymus glaucus Mary Bowerman 1995-7-2 Contra Costa Mount Diablo, (probably Back Canyon or foot trail to Donner Canyon). Comment
  UC691202  Elymus glaucus Mary L. Bowerman 1933-5-21 2154 Contra Costa n-facing slope below Grape Spring (s from Curry Canyon); Mount Diablo Comment
  UC691203  Elymus glaucus Mary L. Bowerman 1935-5-22 3039 Contra Costa Eagle Point ridge Mount Diablo (canyon at n end which heads into saddle w of Twin Peaks) 304 Comment
  POM300594  Elymus glaucus Mary L. Bowerman 1935-5-16 3009 Contra Costa Behind Gabriel-Hinks' (east side of North Peak) 290 Comment
  UC1819004  Elymus trachycaulus subsp. trachycaulus Barbara Ertter, Mary L. Bowerman 1994-6-19 12855 a Contra Costa Mt. Diablo State Park east of Walnut Creek; scrub oak thicket north of road, north of lower summit parking lot, next to drainage on north facing slope. Comment
  UC1819005  Elymus trachycaulus subsp. trachycaulus Barbara Ertter, Mary L. Bowerman 1994-6-19 12851 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit parking lot, opening in chaparral near radio tower, ca 3600'. Comment
  UC2028385  Elymus triticoides Barbara Ertter 1998-6-20 16255 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, wet margin of Willow Spring Pond south of Ginder Gap Comment
  JEPS1564  Emmenanthe penduliflora W. L. Jepson 1920-8-12 9075 Contra Costa Mt. Diablo Comment
  JEPS1599  Emmenanthe penduliflora Mary L. Bowerman 1933-4-26 1916 Contra Costa North Peak ridge east-southeast of the peak, south face, Mount Diablo 609 Comment
  UC1584692  Epilobium brachycarpum Jerry Powell 1987-11-1 1521 Contra Costa Point Molate Richmond (along railroad bed) Comment
  UC692459  Epilobium brachycarpum Mary L. Bowerman 1930-8-31 448 a Contra Costa e main road (near gully); Mount Diablo, Inner Black Hills Comment
  UC101786  Epilobium campestre Katharine Brandegee 1907-6-16 Contra Costa near S.P. Station; Antioch Comment
  UC692446  Epilobium campestre Mary L. Bowerman 1935-6-28 3173 Contra Costa s summit (vernal pool 300 yd e of meridian fence line); Mt. Diablo 487 Comment
  UC914255  Epilobium canum subsp. canum Verne Grant and Alva Grant 1946-9-29 7877 Contra Costa near old tunnel road; Berkeley Hills Comment
  CAS-BOT-BC166161  Epilobium canum subsp. canum E. M. Zeile 1921-10-1 40 Contra Costa Vallejo Junction Comment
  CDA38070  Epilobium ciliatum D. G. Kelch 2003-8-13 3 .142 Contra Costa Carquinez Strait; Pinole Creek. Comment
  CDA38079  Epilobium ciliatum D. G. Kelch 2003-8-13 3 .142 Contra Costa Carquinez Strait; Pinole Creek. Comment
  UC1191729  Epilobium ciliatum subsp. ciliatum Malcolm A. Nobs and S. Galen Smith 1949-7-8 944 Contra Costa 4 mi n Kingston; Otto's Black Bass Resort Comment
  UC1606307  Epilobium ciliatum subsp. ciliatum Barbara Ertter, Chris Thayer 1993-5-7 11693 Contra Costa on Wildcat Canyon Rd 1/2 mi se Inspiration Point (e of Tilden Park, marshy area); East Bay Municipal Utilities land, Hopkins Spring 304 Comment
  UC1613486  Epilobium ciliatum subsp. ciliatum Charles M. Belshaw 1936-12-13 2746 Contra Costa near Berkeley Country Club (North Coast Range); North Coast Range 152 Comment
  UC692457  Epilobium ciliatum subsp. ciliatum Mary L. Bowerman 1930-10-4 476 Contra Costa Maple Spring Mount Diablo Comment
  JEPS38247  Epilobium densiflorum W. L. Jepson 1894-9-7 14401 Contra Costa Grizzly Peak Berkeley Hills Comment
  UC2028026  Epilobium densiflorum Barbara Ertter 1997-9-14 15807 Contra Costa West side of Mount Diablo, Pine Creek upstream from Dusty Trail. Comment
  UC2028093  Epilobium densiflorum Barbara Ertter, Chris Thayer 1996-10-25 15381 Contra Costa West side of Mount Diablo, North Gate Road 3 roadmiles below Junction, roadside drainage near Mineral Spring. Comment
  UC1818895  Epilobium minutum Barbara Ertter, Mary Bowerman et al. 1995-5-7 14065 Contra Costa Three-Springs Trail on NE side of Mt. Diablo SE of Clayton, small serpentine patch at road junction Comment
  UC4498  Epipactis gigantea F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC692134  Equisetum laevigatum Mary L. Bowerman 1931-5-16 864 Contra Costa Lower Silver Spring; Mt. Diablo 853 Comment
  POM300618  Equisetum laevigatum Mary L. Bowerman 1931-10-31 1063 Contra Costa South Road, in bend of road a little below junction. Mt Diablo. Comment
  CDA42474  Equisetum telmateia var. braunii D. G. Kelch 2003-8-13 3 .13 Contra Costa Carquinez Strait; Pinole Creek. Comment
  CAS-BOT-BC204546  Eragrostis curvula R. E. Frenkel 1964-8-17 865 Contra Costa Ca. 1 mile east of Clayton on road shoulder of Marsh Creek Road 182 Comment
  UC2028442  Eragrostis mexicana subsp. virescens Barbara Ertter with Chris Thayer 1996-10-25 15365 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  UC1784081  Eriastrum ertterae Barbara Ertter with Tony Morosco 1998-10-18 16441 Contra Costa Lime Ridge Open Space, in saddle SE of microwave towers on summit Comment
Read comments
Oct 13 2013
  CAS-BOT-BC287525  Ericameria linearifolia Kellogg No date on label s.n. Contra Costa Antioch Comment
  JEPS31312  Ericameria linearifolia W. L. Jepson 1922-5-23 9719 Contra Costa summit Mt. Diablo Comment
  POM196004  Ericameria linearifolia R. Raven 1929-3-31 s.n. Contra Costa Marsh Creek Canyon Comment
  UC1118739  Ericameria linearifolia C. M. Belshaw 1936-5-8 2066 Contra Costa se slope of Mt. Diablo Mt. Diablo Quadrangle, Mt. Diablo (Plot 5) Comment
  UC36554  Ericameria linearifolia H. N. Bolander 1866-4-1 6141 Contra Costa Mount Diablo Comment
  SEINET5552883  Ericameria linearifolia H. S. Gentry 1931-1 54 Contra Costa Collected near Mt. Diablo. Comment
  UC482974  Erigeron foliosus var. franciscensis Mrs. G. Earle Kelly 1932-7-20 Contra Costa after junction on mountain road Mount Diablo Comment
  UC126026  Eriodictyon californicum Katharine Brandegee June, 1908 Contra Costa Antioch Comment
  UC24044  Eriodictyon californicum W. H. Brewer 1862-5-22 1133 Contra Costa ne Monte Diablo; ne of Monte Diablo Comment
  RSA136732  Eriogonum J. T. Howell 1955-8-24 30903 Contra Costa Near summit of south peak, Mt. Diablo Comment
  CDA22474  Eriogonum angulosum J. Simmen 1958-11-6 1515 -58 Contra Costa Palm Tract, Brentwood. 0 Comment
  UC2029056  Eriogonum angulosum Barbara Ertter with Delia Taylor 2003-6-22 18226 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, ridge south of Arata Overlook Trail NE of park headquarters east of Somerville Road. Comment
  JEPS108225  Eriogonum covilleanum David Gowen 2005-5-6 281 Contra Costa Mt. Diablo State Park. Talus slope on the south side of North Peak. Comment
  CAS-BOT-BC250381  Eriogonum gracile Mary L. Bowerman 1932-8-27 1524 Contra Costa Mount Diablo. South of Turtle Rock Comment
  CAS-BOT-BC250380  Eriogonum gracile John Thomas Howell 1929-9-21 4392 Contra Costa Marsh Creek Road 8 miles se. of Clayton Comment
  CAS-BOT-BC250384  Eriogonum gracile John Thomas Howell 1929-7-20 4330 Contra Costa 2 miles s. of Oakley Comment
  UC1980601  Eriogonum gracile James L. Reveal 1974-8-6 3772 Contra Costa Summit of Mt. Diablo, near lower parking lot west of summit. Comment
  JEPS116767  Eriogonum luteolum var. luteolum David Gowen 2006-7-5 634 Contra Costa North of Morgan Territory Regional Preserve. Steep chaparral slope on east side of Hog Canyon (Sycamore Creek). Comment
  SEINET8349867  Eriogonum nudum Barbara Ertter 1997-8-18 15766 Contra Costa Antioche Dunes (USFWS National Wildlife Refuge) on San Joaquin River east of Antioch, southwest corner of refuge north of railroad tracks in former vineyard. Comment
  JEPS112018  Eriogonum nudum subsp. nudum Dean G. Kelch and Andrew G. Murdock 2004-5-28 AGM 293 Contra Costa Pinole Peak. Comment
  SEINET530763  Eriogonum nudum var. auriculatum Paul Opler 2007-6-23 Contra Costa Point Molate. 19 Comment
  UC1607640  Eriogonum nudum var. auriculatum Barbara Ertter, Brad Olson 1993-10-30 12285 Contra Costa w junction of San Pablo Avenue and Vista del Rio (at base of steep bluff above railroad tracks; w of Crockett); Carquinez Strait Regional Shoreline Comment
  CAS-BOT-BC268910  Eriogonum nudum var. auriculatum W. H. Brewer 1861-9-25 841 Contra Costa Near Monte [Mount] Diablo, Mission San Jose Comment
  CAS-BOT-BC268911  Eriogonum nudum var. auriculatum Peter Rubtzoff 1951-10-7 813 Contra Costa 1 to 2 mi. southwest of Moraga Comment
  CAS-BOT-BC268914  Eriogonum nudum var. auriculatum John Thomas Howell 1929-9-21 4393 Contra Costa On Marsh Creek Road 8 miles se. of Clayton Comment
  SEINET10733565 Image available Eriogonum nudum var. psychicola Barbara J. Ertter 1997-8-18 Ertter 15766 Contra Costa Antioch Dunes (USFWS National Wildlife Refuge) on San Joaquin River east of Antioch, southwest corner of refuge north of railroad tracks in former vineyard, fine pale brown sand. Comment
  SEINET11938139  Eriogonum nudum var. pubiflorum M. T. Doutt 1930-1 99 Contra Costa Marsh Creek Comment
  RSA0033856  Eriogonum roseum Barbara Ertter, Tony Morosco 1998-9-18 16436 Contra Costa NE corner of Lime Ridge Open Space northwest of Mount Diablo. 182 Comment
  CAS-BOT-BC267443  Eriogonum truncatum Mary L. Bowerman 1933-5-25 2198 Contra Costa Mount Diablo. Alamo Canyon: above Wilsons' barn Comment
  POM89812  Eriogonum truncatum M. K. Curran 1886-05 s.n. Contra Costa Antioch Comment
  UC692152  Eriogonum truncatum Mary L. Bowerman 1933-5-25 2198 Contra Costa Mount Diablo Comment
  UC692153 Image available Eriogonum truncatum Mary L. Bowerman 1936-6-20 3413 Contra Costa Knoll west of Mt. Zion, north end. Comment
  JEPS108317  Eriogonum umbellatum var. bahiiforme David Gowen 2005-5-29 398 Contra Costa West of Morgan Territory Rd. and the main entrance to Morgan Territory Regional Preserve. Rocky area west of summit of hill 2581 (Tassajara Pk.?). Comment
  POM165074  Eriogonum umbellatum var. bahiiforme A. D. E. Elmer 1903-07 s.n. Contra Costa Mount Diablo Comment
  CAS-BOT-BC262346  Eriogonum vimineum Mary L. Bowerman 1930-6-18 350 Contra Costa Mount Diablo. Summit Comment
  JEPS28851  Eriophyllum jepsonii unknown 1896-5-29 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC300925  Eriophyllum jepsonii Mary L. Bowerman 1936-5-6 3409 Contra Costa Mount Diablo. Uncle Sam Canyon 304 Comment
  UC507126  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-25 E 94 Contra Costa near the se base of Mount Diablo (se slope) Comment
  UC62979  Eriophyllum lanatum var. achilleoides H. M. Hall 1901-4-5 1755 Contra Costa Mt. Diablo Comment
  UC691668  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-30 3097 b Contra Costa Eagle Point ridge = between the two n ridges which converge at Twin Peaks; Mt. Diablo, Eagle Point ridge 350 Comment
  CAS-BOT-BC300965  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 101 Contra Costa South slope, just below summit of Mount Diablo 1066 Comment
  CAS-BOT-BC300978  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-22 3066 Contra Costa Mount Diablo. Most westerly of the two ridges which converge at Twin Peaks (Eagle Point ridge) 365 Comment
  UC1428723  Eriophyllum staechadifolium W. J. Ferlatte with L. M. Moe 1970-4-27 1251 Contra Costa San Francisco Bay, Red Rock Island Comment
  UC1948936  Erodium cicutarium William J. Ferlatte, L. Maynard Moe 1970-4-27 1263 Contra Costa San Francisco Bay: Red Rock Island Comment
  JEPS100094  Erodium moschatum G. Smick 2003-4-1 GAS 104 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC692705  Erodium moschatum Mary L. Bowerman 1931-4-4 655 Contra Costa 4.5 mi from entrance Mount Diablo (west road) Comment
  JEPS15863  Eryngium aristulatum var. aristulatum W. L. Jepson 1894-9-7 14282 Contra Costa foot of sharp canyon e. of Bald Peak at Orinda; Berkeley Hills 121 Comment
  UC106326  Eryngium aristulatum var. aristulatum unknown 1893-7-29 Contra Costa Martinez Comment
  UC765825  Eryngium aristulatum var. aristulatum R. F. Hoover 1937-5-14 2125 Contra Costa Byron Hot Springs Comment
  CDA38328  Eryngium armatum D. G. Kelch 2007-4-1 7 .108 Contra Costa Carquinez Strait; Pt. Pinole. Comment
  UC21001  Eryngium articulatum J. W. Congdon Sept. 1886 Contra Costa Comment
  UC691871  Eryngium castrense Mary L. Bowerman 1935-6-28 3174 Contra Costa s. Meridian Peak summit (300 yds. e. of meridian fence line); Mt. Diablo 487 Comment
  UC692327  Eryngium castrense Mary L. Bowerman 1935-6-28 3171 Contra Costa Mt. Diablo, Chase Pond Comment
  CDA32925  Eryngium jepsonii D. G. Kelch 2009-5-24 9 .294 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  CDA38316  Eryngium jepsonii D. G. Kelch 2002-5-13 2 .003 Contra Costa Carquinez Strait Region; Pt. Costa - Shore: Above Pt. Costa (above road between McEwen and EBRP staging area). Along old river channel. Comment
  CDA38311  Eryngium spinosepalum H. Van Brocklin 1958-6-1 s.n. Contra Costa Byron. 0 Comment
  UCD77691  Eryngium spinosepalum Robert E. Preston 2000-8-6 1432 Contra Costa 2 mi se of Byron Hot Springs, on w side of Byron Hot Springs Rd. 12 Comment
  JEPS97705  Eryngium vaseyi Annetta M. Carter 1951-6-9 3061 Contra Costa 3 mi. S of Byron. Comment
  CAS-BOT-BC40772  Erysimum capitatum Robert F. Hoover 1935-3-10 305 Contra Costa Antioch. Comment
  UC1126602  Erysimum capitatum R. C. Wilson 1935-3-28 152 Contra Costa 1 mi s Mount Diablo; Mt. Diablo Quadrangle Comment
  NY32656  Erysimum capitatum subsp. angustatum A. Eastwood 1936-4-19 2151 Contra Costa Antioch sand hills. Comment
  SD141829  Erysimum capitatum var. capitatum H. L. Mason 1933-4-9 7189 Contra Costa East of Antioch along the San Joaquin River 14 Comment
  UC1034753  Erysimum capitatum var. capitatum G. B. Rossbach 1955-3-13 570 Contra Costa dunes along tidal estuary of river just e Antioch; San Joaquin R Comment
  UC534852  Erysimum capitatum var. capitatum H. L. Mason 1933-4-9 7189 Contra Costa sand hills along river e Antioch; San Joaquin River 12 Comment
  JEPS75891  Erysimum capitatum var. capitatum Dan Cheatham 1977-4-2 Contra Costa easternmost Pacific Gas and Electric tower Antioch Dunes Comment
  UC2028070  Erysimum capitatum var. capitatum Barbara Ertter with Tony Morosco 1998-4-12 16003 Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  SEINET14046171 Image available Erythranthe guttata Lewis S. Rose 1941-1 41064 Contra Costa 2 mi. w. of Byron. 46 Comment
  UC125913  Eschscholzia californica Katharine Brandegee 1907-6-16 Contra Costa bet. Antioch and Marsh Creek Comment
  POM253322  Eschscholzia californica subsp. californica A. A. Heller 1938-4-9 15018 Contra Costa 3 miles southwest of Antioch. Comment
  RSA39848  Eschscholzia californica var. crocea P. A. Munz 1947-10-8 12190 Contra Costa Antioch 12 Comment
  CAS-BOT-BC91582  Eschscholzia rhombipetala K. Curran 1887-6-1 s.n. Contra Costa Antioch. Comment
  OBI69745  Eucalyptus pulverulenta Jenn Yost & Matt Ritter, Matt Ritter 2008-11-15 362 Contra Costa Dan Sekella's House at 1410 Mohr Ct, Walnut Crk Comment
  UC1538790  Euonymus occidentalis var. occidentalis S. W. Edwards 1987-11-20 Contra Costa along Wildcat Creek below the Brazilian Building Tilden Regional Park; , Wildcat Creek 263 Comment
  SJSU8143  Euphorbia oblongata L. W. Main 1972-5-5 Contra Costa 2 mi W of Martinez in Franklin Canyon Comment
  UCR99454  Euphorbia oblongata L. C. Wheeler 1958-8-26 7446 Contra Costa c. 2 mi. SW of Martinez, 0.3 mi. NW of Glen Frazer on Santa Fe; apparently Franklin Canyon, 1.7 mi. west of Martinez at limit on California Route 4 Comment
  CDA4843  Euphorbia oblongata T. C. Fuller 1961-7-6 6585 Contra Costa Carquinez Strait; Alhambra Valley, Highway 4, 0.5 mile west of Glen Frazier Station, ca. 4 miles west of Martinez. 0 Comment
  CAS-BOT-BC202390  Euphorbia ocellata Mary L. Bowerman 1931-8-29 1033 Contra Costa Mount Diablo. North Road 487 Comment
  RSA95829  Euphorbia ocellata subsp. ocellata L. S. Rose 1953-10-12 53096 Contra Costa Mt. Diablo. 381 Comment
  UC2032808  Euphorbia peplus Doran, Andrew Scott 2012-3-20 678 Contra Costa Brooks island loading dock, North side of island. Comment
  JEPS111697  Eurybia radulina D. G. Kelch 2004-4-25 04 .116 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Hill Southwest of large cottonwood. West of Martinez at gated end of Scenic Dr 50 Comment
  JEPS111726  Euthamia occidentalis D. G. Kelch 2004-7-9 04 .309 Contra Costa Pacheco Marsh Pacheco hill Marsh west of Pacheco Slough 5 Comment
  RSA760667  Festuca William J. Ferlatte, L. Maynard Moe 1970-4-27 1253 Contra Costa San Francisco Bay, Red Rock Island. Comment
  CAS-BOT-BC278178  Festuca D. E. Breedlove 1971-5-14 19337 Contra Costa Along Sierra Vista Way, Lafayette Comment
  CAS-BOT-BC278318  Festuca californica subsp. californica Mary L. Bowerman 1931-4-25 757 Contra Costa Mount Diablo. Near junction of south and west roads Comment
  UC2028533  Festuca microstachys Barbara Ertter with Tony Morosco 1998-4-12 15989 Contra Costa Base of Mount Olympia on north side of Mount Diablo. Comment
  CHSC116605  Festuca microstachys var. pauciflora Lowell Ahart; Josephine Guardino 2016-4-19 20792 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along south side of road exit at Los Vaqueros Marina, 2.3 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  SEINET257715 Image available Festuca rubra M. Barkworth, D Amme 1989-6-15 5168 Contra Costa Bluffs back of beach just N of Castro Point Comment
  RSA93678  Filago gallica H. L. Mason 1928-4-26 4386 Contra Costa Berekeley-Oakland Hills Comment
  UC691117  Fragaria vesca Mary L. Bowerman 1931-3-29 623 Contra Costa n-face East Cave Point Ridge; Mount Diablo Comment
  CAS-BOT-BC52534  Frangula californica subsp. californica Mary L. Bowerman 1930-8-31 451 a Contra Costa Inner Black Hills, Sloan Road east of the Sloan place Comment
  CAS-BOT-BC62921  Frangula californica subsp. tomentella John Thomas Howell 1930-9-28 5490 Contra Costa Marsh Creek Rd., e. of Clayton. Comment
  CAS-BOT-BC223860  Frankenia salina L. R. Abrams 1916-7-1 5730 Contra Costa Near Martinez Comment
  CAS-BOT-BC223861  Frankenia salina Walter Knight; Irja Knight 1968-8-14 2418 Contra Costa On Contra Loma Drive, north side of road, Contra Loma Regional Park, near Antioch Comment
  UC2028959  Frankenia salina Barbara Ertter 2002-8-24 18022 Contra Costa Dunn Creek south of Mount Diablo Mine property on NE base of Mount Diablo. Comment
  CAS-BOT-BC223393  Fraxinus dipetala Mary L. Bowerman 1935-6-1 3103 Contra Costa Mount Diablo. First small ridge east of Mitchell-Pine divide 1005 Comment
  UCD102397  Fraxinus dipetala Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 860 Comment
  CAS-BOT-BC136075  Fritillaria affinis Mary L. Bowerman 1932-3-23 1129 Contra Costa Tiny canyon east of Donner Canyon - Mt. Diablo 274 Comment
  SEINET12045027  Fritillaria affinis L. S. Rose 1934-1 34047 Contra Costa Mt. Diablo Comment
  UCD84953  Fritillaria agrestis Chuck Hughes 2010-4-1 225 Contra Costa About 0.6 mile east of Los Vaqueros Road. 305 Comment
  JEPS111523  Fumaria capreolata D. G. Kelch 2005-5-5 05 .208 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  UC1789195  Fumaria capreolata Barbara Ertter 1999-3-21 16486 Contra Costa Miller Knox Regional Park near Point Richmond, edge of old excavation into rock (southeast of Richmond Ramblers building). Comment
  UCR263793  Fumaria capreolata Barbara Ertter 1999-3-21 16486 Contra Costa Central Coast, Miller Knox Regional Park near Point Richmond, southeast of Richmond Ramblers building 15 Comment
  JEPS124455  Galium andrewsii subsp. gatense Daniel Slakey with CNPS Volunteers 2015-6-13 130 Contra Costa Mt. Diablo State Park, east side of Burma Road. Comment
  JEPS52812  Galium andrewsii subsp. gatense Lauramay T. Dempster 1965-5-2 4090 Contra Costa above Bridlepath Campground; Mount Diablo 701 Comment
  UC1177368  Galium andrewsii subsp. gatense Peter H. Raven 1950-7-5 2478 Contra Costa near summit Mt. Diablo 1097 Comment
  UC28155  Galium andrewsii subsp. gatense F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  JEPS112106  Galium aparine D. G. Kelch 2003-4-3 03 .352 Contra Costa Cummings Skyway South of Cummings Skyway and Crockett Blvd 134 Comment
  CDA33985  Galium aparine D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .11 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  UCD121622  Galium aparine Robert C. Bechtel 1952-4-12 58 Contra Costa West side Mt. Diablo. 914 Comment
  UC1861822  Galium californicum subsp. californicum Barbara Ertter, Chris Thayer 1995-4-25 14000 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd. at northeast FK of Sycamore Creek, 396 Comment
  RSA666412  Galium murale Barbara Ertter, Chris Thayer 1993-5-7 11715 Contra Costa Ca 1/2 mile N of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land E of Tilden Park. Grazing land on lower slopes S of Wildcat Canyon Road. Comment
  JEPS97597  Galium porrigens R. D. Stone 1981-3-23 346 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (northeast of intersection of Skyline Blvd. and Snake Rd.) Comment
  JEPS112101  Galium porrigens var. porrigens D. G. Kelch 2003-4-3 03 .357 Contra Costa Cummings Skyway 134 Comment
  UC1143107  Galium tricornutum C. M. Belshaw 1936-5-13 2124 Contra Costa s Horse Valley (Plot 38); Mt. Diablo Quadrangle Comment
  UC672198  Gamochaeta ustulata H. L. Mason 1928-4-12 4302 Contra Costa Richmond waterfront Comment
  POM301044  Gamochaeta ustulata Mary L. Bowerman 1938-6-2 3654 Contra Costa Dan Cook Canyon, 100 yards N of camp. 549 Comment
  UC1281040  Garrya elliptica H. E. McMinn 1925-4 Contra Costa head of San Leandro Creek Comment
  UC21587  Garrya elliptica Willis L. Jepson 1892-3-5 Contra Costa Redwood Peak Comment
  CAS-BOT-BC200629  Garrya elliptica Mary L. Bowerman 1933-3-11 1747 Contra Costa Fossil Ridge, knoll south of 1778 Comment
  CAS-BOT-BC282610  Gastridium phleoides Mary L. Bowerman 1933-6-14 2272 Contra Costa Ridge between two main forks, Curry-Cave Canyon, Mount Diablo Comment
  CAS-BOT-BC282611  Gastridium phleoides Mary L. Bowerman 1935-7-22 3191 Contra Costa Hidden Pond, Mount Diablo Comment
  CHSC116654  Geranium dissectum Lowell Ahart; Josephine Guardino 2016-4-19 20776 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the east side of the gravel road, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC1819042  Geranium dissectum Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14236 Contra Costa South side Mount Diablo, Sheepherder Springs complex 1/2 mile north of Curry Point, wet ground in grassland. 487 Comment
  UC2032836  Geranium dissectum Doran, Andrew Scott 2012-3-20 706 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  UC571135  Geranium dissectum A. E. Borell 1928-3-31 78 Contra Costa Richmond Comment
  UC1057453  Geranium dissectum G. Thomas Robbins 1937-4-25 142 Contra Costa e of La Vista Comment
  UC2027819  Geranium molle Barbara Ertter with Holly Forbes 1997-4-20 15547 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  UC2029017  Geranium robertianum Barbara Ertter 1999-7-17 16768 Contra Costa Tilden Regional Park, trail to Jewel Lake paralleling Wildcat Creek, through thick woodland growth. Comment
  CHSC102194  Geranium rotundifolium Barbara Ertter 1996-6-4 14684 Contra Costa Tilden Regional Park in hills east of Berkeley, restoration site northeast of junction of Grizzly Peak boulevard and GolF Course Drive. Comment
  UC651088  Gilia achilleifolia subsp. achilleifolia P. B. Kennedy 1916-5-21 Contra Costa Diablo and Summit Comment
  UC2022570  Gilia achilleifolia subsp. multicaulis Lewis S. Rose 1934-3-21 34067 Contra Costa 6 mi E of Clayton. Comment
  UC880124  Gilia achilleifolia subsp. multicaulis Lewis S. Rose 1941-5-15 41231 Contra Costa w slope Mount Diablo; w slope Mount Diablo 396 Comment
  JEPS69577  Gilia capitata subsp. staminea W. L. Jepson 1931-4-5 15723 Contra Costa vicinity San Francisco Bay (Nortonville); vicin San Francisco Bay, Nortonville Comment
  UC2062648  Gilia capitata subsp. staminea Barbara Ertter with Dan Norris 2001-4-8 17596 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  JEPS99990  Gilia clivorum G. Smick 2003-3-25 GAS 89 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SD234478  Gilia clivorum Peter L. Morrell, N. Takebayashi. 1995-5-21 472 Contra Costa Central Coast: S of Clayton in Mitchell Canyon, above the banks of Mitchell Creek and beneath Eagle Peak (Clayton 7.5' Q) 399 Comment
  UC691608  Gilia clivorum Mary L. Bowerman 1935-5-1 2932 Contra Costa West Road 2 mi from entrance (( = North Road), Mount Diablo); Mount Diablo, West Road (=North Road) 182 Comment
  UC909004  Gilia clivorum Herbert L. Mason 1928-4-15 4358 Contra Costa top Moraga Ridge; top of Moraga Ridge Comment
  UC2027812  Gilia clivorum Barbara Ertter with Stu Garrett 1997-3-29 15541 Contra Costa West side Mount Diablo, Mothers Trail. Comment
  UC1554401  Gilia millefoliata Alice M. Ottley 1920-3-6 219 Contra Costa Black Hills San Francisco Bay Region, Black Hills Comment
  CDA927  Gilia tricolor D. G. Kelch 2004-3-13 4 .042 Contra Costa Road cut on Marsh Creek Road ~ 1.5 miles W of Deer Valley Road. Comment
  SEINET12278815  Gilia tricolor J. G. Lemmon 1878-1 s.n. Contra Costa side of Mt. Diablo Comment
  UC809626  Gilia tricolor subsp. diffusa Verne Grant, Alva Grant 1949-3-30 8640 Contra Costa on Marsh Creek road 4 mi w Byron; w of Byron Comment
  UC2029034  Gilia tricolor subsp. tricolor Barbara Ertter 2000-3-30 16911 Contra Costa North side of Mount Diablo, Deer Flat at head of Mitchell Canyon. Comment
  CAS-BOT-BC266488  Githopsis diffusa R. Bacigalupi 1927-5-13 1569 Contra Costa Along Danville - Mount Diablo Road near Garden of the Jungle Gods 518 Comment
  UC691589  Githopsis diffusa subsp. robusta Mary L. Bowerman 1931-5-16 851 Contra Costa Mount Diablo Comment
  UC22422  Glaux maritima Jos. Burtt Davy 1900-6-7 6665 Contra Costa near Martinez Comment
  CDA27056  Glycyrrhiza lepidota D. G. Kelch, A. G. Murdock 2004-6-6 4 .222 Contra Costa Carquinez Strait Region; Downtown Martinez. Alhambra Creek near bay and railroad station. Comment
  CDA35615  Gnaphalium californicum I. Godwyn 2011-5-12 PDR# 1649778 Contra Costa Richmond; Wildcat Canyon Regional Park, near McBryde Ave. 0 Comment
  JEPS20443  Gnaphalium palustre W. L. Jepson May 23 1891-May 24 1891 14746 Contra Costa near Mt. Diablo Comment
  UCR197918  Gnaphalium palustre Beecher Crampton 1950-6-20 595 Contra Costa 1 mile north of Richmond, Triangle Court 9 Comment
  CAS-BOT-BC303891  Gnaphalium palustre Mary L. Bowerman 1935-6-28 3168 Contra Costa Mt Diablo. Chase Pond. S of summit, by Old Government Trail: dry upper margins of pond 548 Comment
  UCD32426  Gnaphalium palustre Beecher Crampton 1950-6-20 595 Contra Costa Contra Costa County, 1 mile north of Richmond, Triangle Court. Comment
  CDA31363  Gnaphalium ramosissimum D. G. Kelch 2006-8-11 6 .373 Contra Costa Carquinez Strait.; Top of Edward s Canyon. Crockett. Comment
  POM721360  Gnaphalium stramineum Barbara Ertter, Richard K. Rabeler 1994-6-6 12817 Contra Costa Point Isabel in S Richmond; on old railroad bed north of Costco. Comment
  UC35376 Image available Godetia blasdalei W. C. Blasdale 1893-7-11 Contra Costa Point Isabel Comment
  CDA6050  Grindelia X paludosa D. G. Kelch, A. G. Murdock 2003-8-13 3 .103 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  CHSC99194  Grindelia camporum var. camporum John Dittes 2006-10-26 1416 Contra Costa San Joaquin Valley (foothills near nw edge); ~2.0 air-miles south of Marsh Creek Reservoir Gauging Station, 1.6 air-mile southwest of intersection of Camino Diablo and Vasco Road; Contra Costa Water District's Los Vaqueros Watershed Mitigation Project Area. 67 Comment
  SEINET266960  Grindelia camporum var. camporum Meredith A. Lane 1986-9-8 3104 Contra Costa At norther city limit of Pinole along San Pablo Blvd. 15 Comment
  CAS-BOT-BC305246  Grindelia hirsutula L. R. Abrams 1910-10-9 4357 Contra Costa Between San Ramon and Dublin Comment
  JEPS111662  Grindelia hirsutula A. G. Murdock 2004-5-28 284 Contra Costa Pinole Peak 205 Comment
  JEPS120269  Grindelia hirsutula Barbara Ertter with David Gowen 2012-6-9 21023 Contra Costa at junction of Seaview Trail and road into EBMUD land north of Vollmer Peak, southeastern Tilden Park in Berkeley Hills Comment
  UC691867  Grindelia hirsutula Mary L. Bowerman 1931-6-2 916 Contra Costa ridge extending n from North Peak (Mount Diablo); , North Peak 822 Comment
  CAS-BOT-BC305239  Grindelia hirsutula H. E. McMinn No date on label 138 Contra Costa Above Richmond ferry slip Comment
  CAS-BOT-BC305242  Grindelia hirsutula John Thomas Howell 1929-9-21 4387 Contra Costa 4 miles west of Clayton Comment
  SEINET10724143  Grindelia hirsutula John T. Middleton Middleton s.n. Contra Costa Seaside, Richmond. Comment
  SEINET3140051  Grindelia hirsutula M. P. Dunford 1980-7-30 1510- 12 -2 Contra Costa Cultivated specimen from seed collected just W of Antioch Bridge over the San Joaquin River Comment
  UC2027746  Grindelia hirsutula Barbara Ertter 1997-1-5 15434 Contra Costa Ygnacio Valley Road crossing Lime Ridge on northwest side of Mount Diablo. Comment
  UC2028054  Grindelia hirsutula var. hirsutula Barbara Ertter with Amy Rusev 1998-1-17 15905 Contra Costa Edge of Lime Ridge Open Space at NW foot of Mount Diablo, around former quarry [subsequently developed] on south side of Ygnacio Valley Road. Comment
  UC691137  Guillenia flavescens Mary L. Bowerman 1935-4-17 2842 Contra Costa 2 mi from West road (=North Rd.) entrance (ridge w of chaparral, immediately e of section line); Mount Diablo 304 Comment
  POM300595  Guillenia flavescens Mary L. Bowerman 1935-4-22 2879 Contra Costa North Road 2 miles from North Gate, just W of chaparral. 213 Comment
  UC10956  Guillenia lasiophylla Alice Eastwood 1893-5-5 Contra Costa Brentwood Comment
  UC691110  Guillenia lasiophylla Mary L. Bowerman 1932-3-23 1131 Contra Costa ridge e Donner Canyon; Mount Diablo 274 Comment
  POM300575  Guillenia lasiophylla Mary L. Bowerman 1932-3-23 1131 Contra Costa Ridge E of Donner Canyon. 274 Comment
  CAS-BOT-BC304576  Gutierrezia californica Lewis S. Rose 1932-10-2 32655 Contra Costa Marsh Creek Road Comment
  RSA455866  Gutierrezia californica E. E. Stanford 1930-9-20 2101 Contra Costa Near Walnut Creek Comment
  SEINET10893043  Hainardia cylindrica E. E. Stanford 1930-5-16 Stanford 1485 Contra Costa Near Old River. Levee. Comment
  UC1594170  Helenium bigelovii Jerry Powell 1991-6-29 1611 Contra Costa intertidal zone at river edge Antioch National Wildlife Refuge Comment
  UCD132756  Helenium puberulum Malcolm A. Nobs; S. Galen Smith 1949-7-8 949 Contra Costa Otto's Black Bass Resort, 4 miles N of Kingston. Comment
  UC469039  Helenium puberulum Tracy J. Storer 1912-7-12 Contra Costa n mi sw Walnut Creek 60 Comment
  CAS-BOT-BC314697  Helianthella californica var. californica Paul F. Covel 1936-4-19 233 Contra Costa Hilltop above L. Trampas Cn. Comment
  CAS-BOT-BC305328  Helianthella castanea John Thomas Howell 1931-5-12 6475 Contra Costa Nortonville Comment
  POM203709  Helianthella castanea J. T. Howell 1931-5-12 6475 Contra Costa Nortonville Comment
  UC194925  Helianthella castanea H. M. Hall 1916-5-31 10137 c Contra Costa flat on s side Mt. Diablo 1066 Comment
  UC88881  Helianthella castanea Alice Eastwood 1897-5-31 Contra Costa Mt. Diablo Comment
  UCD132760  Helianthella castanea H. A. Stout; T. C. Wainwright 1980-3-27 1 Contra Costa Mallory Ranch, around 1 mile east of Morgan Territory road. 621 Comment
  CAS-BOT-BC305606  Helianthus californicus Mary L. Bowerman 1932-9-17 1581 Contra Costa Mount Diablo. Donner Canyon, west fork Comment
  JEPS112356  Helianthus californicus D. G. Kelch 2004-9-2 04 .332 Contra Costa Pacheco Marsh Marsh east of Martinez and I-680 and east of lone tree Marsh. Large perennial along road 5 Comment
  UC697185  Helianthus gracilentus Mary L. Bowerman 1932-9-24 1592 Contra Costa knoll w of Twin Peaks; Mount Diablo 457 Comment
  POM301045  Helianthus gracilentus Mary L. Bowerman 1935-5-22 3055 Contra Costa Mt. Diablo: Saddle west of Twin Peaks (Eagle Point ridge). Chapparal from saddle up to Twin Peaks (southwest face) and downwards into Uncle Sam Canyon. Comment
  UC691488  Helianthus gracilentus Mary L. Bowerman 1933-5-11 2074 Contra Costa most westerly part 1931 burn; Mount Diablo, Inner Black Hills Comment
  JEPS111836  Heliotropium curassavicum A. G. Murdock 2004-6-4 327 Contra Costa Pacheco Marsh Near shore on back of dikes 2 Comment
  UC1084508  Heliotropium curassavicum G. Thomas Robbins 1940-5-19 330 Contra Costa roadside between Antioch and Rio Vista Rio Vista Comment
  UC1584687  Helminthotheca echioides Jerry Powell 1987-7-14 1503 Contra Costa Point Molate Beach Comment
  UC697141  Helminthotheca echioides Mary L. Bowerman 1936-10-24 3583 Contra Costa Mount Diablo, North Road 131 Comment
  UC197525  Hemizonia congesta subsp. lutescens H. M. Hall 1914-9-13 9875 Contra Costa n of San Pablo Comment
  CAS-BOT-BC306265  Hemizonia congesta subsp. lutescens R. E. Frenkel 1963-8-18 260 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  CAS-BOT-BC314857  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1937-9-2 s.n. Contra Costa Walnut Creek Comment
  CDA7025  Hemizonia congesta subsp. luzulifolia D. G. Kelch, A. G. Murdock 2004-7-9 4 .294 Contra Costa Carquinez Strait Region; Crockett - Carquinez Scenic Drive. East of Crockett West of Bull Valley SA. Comment
  CDA8366  Hemizonia congesta subsp. luzulifolia D. G. Kelch 2003-11-24 3 .341 Contra Costa Carquinez Strait; Between Bull Valley Staging Area and Port Costa. Comment
  UC1069538  Hemizonia congesta subsp. luzulifolia H. S. Yates 1934-9-2 4078 Contra Costa Wildcat Creek Concord Quadrangle Comment
  UC405440  Hemizonia congesta subsp. luzulifolia Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  CAS-BOT-BC314855  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1931-10-13 1061 Contra Costa Sycamore Valley west of Sycamore Creek, Mount Diablo Comment
  CAS-BOT-BC314872  Hemizonia congesta subsp. luzulifolia D. E. Breedlove 1969-10-18 16707 Contra Costa Along the roadbank on Deer Hill Road near the junction with Happy Valley Road, Lafayette Comment
  CAS-BOT-BC314876  Hemizonia congesta subsp. luzulifolia Joseph Andorfer Ewan; Nesta Ewan 1935-8-23 9338 Contra Costa Wildcat Creek Comment
  UC691542  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1932-5-1 1405 Contra Costa grassy knoll e of creek and just n water tank; Mount Diablo, Alamo Canyon Comment
  CDA6977  Hemizonia corymbosa D. G. Kelch, A. G. Murdock 2004-5-7 4 .179 Contra Costa Carquinez Strait; Canada del Cierbo. Comment
  CDA33546  Hemizonia fitchii Fisher, Deviney 2010-6-2 PDR# 1645252 Contra Costa Byron; Armstrong Road Extension 1/3 mile southeast of Vasco Rd. Comment
  POM360296  Hemizonia fitchii E. E. Stanford 1930-9-20 2100 Contra Costa Near Walnut Creek Comment
  SEINET3387003 Image available Hemizonia heermannii Lewis S. Rose 1933-10-22 33387 Contra Costa Wildcat Canyon. Comment
  SEINET5126926  Hemizonia kelloggii Kellogg 1870-4-22 s.n. Contra Costa Near Antioch Comment
  RSA216763  Hemizonia lutescens Robert F. Hoover 1969-9-1 11568 Contra Costa Between San Pablo and Pinloe. Comment
  POM190899  Hemizonia pungens subsp. pungens D. D. Keck 1932-7-7 1736 Contra Costa Just E of Nichols. Comment
  POM52253  Hemizonia pungens subsp. pungens A. D. E. Elmer 1903-05 4892 Contra Costa Walnut Creek Comment
  CHSC21758  Heracleum lanatum Carol Getzinger 1964-4-26 52 Contra Costa Arlington Boulevard at Cutting Boulevard. 30 Comment
  UC691881  Heracleum lanatum Mary L. Bowerman 1930-8-24 422 Contra Costa Mt. Diablo, Mitchell Canyon Comment
  UC901875  Heracleum lanatum L. Constance 1950-6-25 3326 Contra Costa s. rim Wildcat Canyon (Tilden Park); , Tilden Park 365 Comment
  JEPS111742 Image available Hesperevax sparsiflora var. sparsiflora D. G. Kelch 2005-3-25 05 .91 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 80 Comment
  UC691822  Hesperevax sparsiflora var. sparsiflora Mary L. Bowerman 1931-4-25 753 Contra Costa 2 mi by road from west entrance Mount Diablo Comment
  UC1818919  Hesperocnide tenella Barbara Ertter, Mary Bowerman et al. 1995-5-7 14054 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, road behind honses traversing north facing slope, mixed forest with much undergrowth. Comment
  JEPS122864  Hesperolinon breweri Adam C. Schneider with Yuri P. Springer 2014-5-16 591 Contra Costa Along hills west of Los Vaqueros Reservoir. Comment
  POM86814  Hesperolinon breweri Katherine Brandegee 1907-6-16 s.n. Contra Costa Hills betweeen Antioch and Marsh Creek, on easterly side of Mt. Diablo Comment
  UC558458  Hesperolinon breweri Herbert L. Mason 1936-6-14 Contra Costa ridge running s Mount Diablo (head of Creek); Marsh Creek Comment
  UC762273  Hesperolinon breweri R. F. Hoover 1939-5-20 4106 Contra Costa head Markley Canyon Comment
  UC73444  Hesperolinon californicum Milo S. Baker 1904-6-23 Contra Costa near Hurley's; Mount Diablo Comment
  UC725833  Hesperomecon linearis A. A. Heller 1908-4-16 8890 Contra Costa East of Antioch 22 Comment
  UC2028265  Heterocodon rariflorum Barbara Ertter 1999-6-12 16715 Contra Costa West Branch Alamo Creek on south flank of Mount Diablo, along unofficial path running from north spur of Black Hawk Ridge Road to south spur off of Knob Cone Point Road (near powerline). Comment
  UC186817  Heterodraba unilateralis F. T. Bioletti 1892-1 Contra Costa Byron Comment
  CDA25927  Heteromeles arbutifolia D. G. Kelch, A. G. Murdock 2003-2-7 3 .038 Contra Costa Carquinez Strait Region; Franklin Canyon. Comment
  CDA981  Heteromeles arbutifolia D. G. Kelch 2006-6-23 06 .322-C Contra Costa Carquinez Strait; West Valona. West of the Zampa Bridge above San Pablo Ave. Along small stream draining north into the Western end of the Carquinez Strait. Comment
  JEPS112075  Heteromeles arbutifolia D. G. Kelch 2003-2-7 03 .38 Contra Costa Franklin Canyon 115 Comment
  JEPS99982  Heteromeles arbutifolia G. Smick 2003-2-20 GAS 50 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC311160  Heterotheca sessiliflora subsp. bolanderi John Thomas Howell 1930-7-31 5416 Contra Costa North Berkeley Hills Comment
  CAS-BOT-BC310908  Heterotheca villosa Niall McCarten; V. I. Dains 1986-1-1 04311257 81 Contra Costa East Contra Costa County. SW corner of Hwy. 4 & Laurel Road near Oakley Comment
  JEPS97526  Heuchera micrantha var. pacifica R. D. Stone 1980-7-13 267 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) 396 Comment
  JEPS129820  Holcus lanatus Dean G. Kelch and Andrew G. Murdock 2005-6-24 05 .386 Contra Costa Crockett - 5th St. Prairie. Comment
  UC1332423  Holocarpha heermannii P. B. Dickey 1932-9-14 164 Contra Costa Walnut Creek Comment
  CAS-BOT-BC325833  Holocarpha heermannii John Thomas Howell 1929-9-21 4389 Contra Costa 5 miles se. of Clayton on Marsh Creek Road Comment
  POM360677  Holocarpha heermannii Hattie Beuton 1917-09 3287 Contra Costa Mt. Diablo. Comment
  UC1795651  Holocarpha heermannii Barbara Ertter, Brad Olson, Diane Lake, Seth Adams, et al. 1994-9-11 13096 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton,, open slopes between ponds at south foot of ridge, open woodland/ grassland, heavily grazed. Comment
  UC691478  Holocarpha heermannii Mary L. Bowerman 1931-9-12 1039 Contra Costa 838 Comment
  CAS-BOT-BC320226  Holocarpha macradenia David J. Powers 1974-10-6 1001 Contra Costa 100-400 feet east of highway 80, and 100-300 yards south of Appian Way, Pinole Comment
  CAS-BOT-BC320222  Holocarpha macradenia Walter Knight; Irja Knight 1977-9-12 3159 Contra Costa At SE corner of Appian Way and Highway I-80. Pinole Comment
  UCD133198  Holocarpha macradenia David J. Powers 1974-10-6 1001 Contra Costa east of Highway 80 and 100-300 yards south of Apian Way, Pinole. 30 Comment
  UC897734  Holocarpha obconica Lewis S. Rose 1938-10-28 38309 Contra Costa 8 mi w Byron; Marsh Creek 60 Comment
  CAS-BOT-BC320329  Holocarpha virgata John Thomas Howell 1930-9-28 5502 Contra Costa 5.4 miles from Byron, on Marsh Creek Road Comment
  CAS-BOT-BC324619  Holocarpha virgata John Thomas Howell 1929-9-21 4389 Contra Costa 5 miles southeast of Clayton on Marsh Creek Road Comment
  CHSC84517  Holocarpha virgata subsp. virgata John Dittes 2003-6-28 2003 -69 Contra Costa San Joaquin Valley; foothills, ca. 13.3 air-mile north by northeast of Livermore, ca. 3.4 air-miles south by southwest of Brentwood, ca. 1.3 air-miles southeast of Marsh Creek Reservoir Gauging Station. 73 Comment
Read comments
Dec 25 2008
  UC1069564  Holocarpha virgata subsp. virgata G. T. Nordstrom 1937-10-28 1407 Contra Costa 1.6 mi nne Somersville; Mt. Diablo Quad. 188 Comment
  UC2029132  Holocarpha virgata subsp. virgata Barbara Ertter with David Gowen and Mike Park 2004-6-13 18372 Contra Costa Black Diamond Mines Regional Preserve, forks of Old Homestead Loop Trail. Comment
  JEPS112080  Holodiscus discolor D. G. Kelch 2003-8-13 03 .125 Contra Costa Vaca Canyon 165 Comment
  JEPS99981  Holodiscus discolor A. Langston 2003-6-12 AL 40 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD159359  Holozonia filipes D. S. Park 2010-6-22 144 Contra Costa Wildwood canyon, along trailside. Grassland. Abundant. 97 Comment
  JEPS41058  Hordeum brachyantherum subsp. brachyantherum Rimo Bacigalupi and L. R. Heckard 1965-5-11 9087 Contra Costa sw Richmond (Brooks Island, San Francisco Bay); San Francisco Bay, Brooks Island Comment
  CAS-BOT-BC284989  Hordeum depressum Ira L. Wiggins 1930-4-17 4578 Contra Costa 1/4 mi. S. of Byron Comment
  UC691197  Hordeum marinum subsp. gussoneanum Mary L. Bowerman 1932-11-26 1670 Contra Costa Boulevard Spring (West road) Mount Diablo (edge of spring); , Boulevard Spring Comment
  UC1950126  Hordeum marinum subsp. gussoneanum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8140 Contra Costa alkali sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  CAS-BOT-BC284743  Hordeum murinum Walter Knight; Irja Knight 1980-8-26 3802 Contra Costa Growing in Hercules Comment
  CAS-BOT-BC284778  Hordeum murinum subsp. glaucum Mary L. Bowerman 1933-5-17 2097 Contra Costa Mount Diablo. Branch of Curry Canyon due south of Olafsons' barn Comment
  UC50687  Hordeum murinum subsp. leporinum Jos. Burtt Davy 1900-3-24 6536 Contra Costa Point Richmond Comment
  UC50688  Hordeum murinum subsp. leporinum Jos. Burtt Davy 1899-4-19 7868 Contra Costa Moraga Valley Comment
  RSA123439  Hordeum murinum subsp. leporinum R. W. Lundh 1933-4-17 229 Contra Costa Bolinas Creek 152 Comment
  JEPS112098  Horkelia californica subsp. frondosa D. G. Kelch 2005-5-1 05 .192 Contra Costa Crockett - Edwards Canyon. On shady bank 150 Comment
  CAS-BOT-BC6224  Horkelia frondosa Edward Lee Greene 1889-5-1 s.n. Contra Costa Martinez Comment
  CDA24877  Hornungia procumbens Jim Jokerst 1989-3-28 3057 Contra Costa Northwest of junction Byron Hot Springs Road and Armstrong Road, northeast of Livermore. 0 Comment
  UC691695  Hydrophyllum occidentale Mary L. Bowerman 1931-4-25 770 Contra Costa Mount Diablo summit; Mount Diablo Comment
  JEPS100182  Hypochaeris glabra G. Smick 2003-3-27 GAS 100 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA31227  Hypochaeris glabra Joseph A. Ewan 1936-5-3 9492 Contra Costa W slope of Wildcat Canyon near Shasta Road. Comment
  CAS-BOT-BC311409  Hypochaeris radicata R. E. Frenkel 1964-2-22 358 Contra Costa On Giant Road, 0.4 mile north ATSF RR crossing, Richmond 15 Comment
  UC692078  Isoetes howellii Mary L. Bowerman 1935-7-22 3187 Contra Costa s. side Meridian Peak (Hidden Pond); Mt. Diablo, Hidden Pond 518 Comment
  UCD133390  Iva axillaris M. Wiesendanger 1926-6-26 1566 Contra Costa Richmond. Comment
  JEPS22099  Iva axillaris subsp. robustior G. Thomas Robbins 1958-7-19 3909 Contra Costa at edge of rock quarry on hills above and just s Castro Pt.; San Francisco Bay, Richmond Comment
  UC1949201  Jaumea carnosa Barbara Ertter with Elizabeth Neese 1988-10-15 7975 Contra Costa W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue Comment
  SEINET1910273  Jaumea carnosa Barbara Ertter, Elizabeth Neese 1988-1 7975 Contra Costa Salicornia marsh @ of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue. Comment
  JEPS46453  Juglans californica W. L. Jepson 1901-10-13 Contra Costa near Lafayette Comment
  CHSC93636  Juglans californica var. hindsii Paul Kirk; Joe Callizo 2001-10-8 9 Contra Costa City of Lafayette Community Park, W side of Las Trampas Creek, 1 m E of backyard property line of home at 615 Burton Rd. 119 Comment
  UC1197942  Juglans californica var. hindsii Joseph P. Tracy 1934-4-30 13186 Contra Costa near Lafayette; North Coast Ranges 152 Comment
  UC583156  Juglans californica var. hindsii Lewis S. Rose 1936-4-24 36140 Contra Costa 5 mi e Clayton; Marsh Creek 60 Comment
  UC691942  Juglans californica var. hindsii Mary L. Bowerman 1936-5-6 3412 Contra Costa Mitchell Canyon floor Mount Diablo (10 feet from stream) 259 Comment
  RSA0027709  Juncus articulatus Barbara Ertter 1996-9-19 15300 Contra Costa Antioch Marina, edge of bay in Dow Marsh lands. Comment
  JEPS99492  Juncus bufonius var. bufonius Mary Bowerman 1995-6-4 Contra Costa Mount Diablo, North Gate Rd. Comment
  RSA0029053  Juncus bufonius var. bufonius Barbara Ertter 1999-6-12 16716 Contra Costa West Branch Alamo Creek on south flank of Mount Diablo, along unofficial path running from north spur of Black Hawk Ridge Road to south spur off of Knob Cones Point Road (near powerline). 457 Comment
  UC1795731  Juncus bufonius var. bufonius Barbara Ertter, Kristin Ertter 1995-7-11 14472 Contra Costa Sulfur Spring on Pine Cr, Diablo Foothills Regional Park SW of Walnut Creek, marshy wet ground. 121 Comment
  UC2028264  Juncus bufonius var. bufonius Barbara Ertter 1999-6-12 16716 Contra Costa West Branch Alamo Creek on south flank of Mount Diablo, along unofficial path running from north spur of Black Hawk Ridge Road to south spur off of Knob Cone Point Road (near powerline). Comment
  UC1819050  Juncus bufonius var. congestus Barbara Ertter, Lisa Schultheis 1995-4-27 14009 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Dr. 121 Comment
  UC2028458  Juncus effusus var. pacificus Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17514 Contra Costa South side Mount Diablo, Green Ranch Road at Meridian Springs Creek crossing Comment
  POM300635  Juncus mexicanus Mary L. Bowerman 1933-9-15 2443 Contra Costa Mount Diablo; Hunt Spring. 762 Comment
  UC1619922  Juncus occidentalis Barbara Ertter, Brad Olson 1991-11-10 10887 Contra Costa behind yacht harbor (extreme w Richmond); Richmond, Point San Pablo Comment
  UC2013064  Juncus occidentalis Barbara Ertter with Lisa Schultheis 1996-9-2 15282 Contra Costa South side Mount Diablo, grasslands below Knobcone Point Road along path to Devils Slide. Comment
  UC2028530  Juncus occidentalis Barbara Ertter 1998-1-17 15898 Contra Costa Lime Ridge Open Space at NW foot of Mount Diablo. Comment
  UC2028537  Juncus occidentalis Barbara Ertter 1998-2-15 15912 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, open bank southeast of Indian Valley Pond. Comment
  JEPS100048  Juncus patens A. Langston 2003-6-6 AL 38 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691977  Juncus xiphioides Mary L. Bowerman 1932-10-1 1601 Contra Costa Mitchell Canyon Mount Diablo Comment
  UC691979  Juncus xiphioides Mary L. Bowerman 1933-6-21 2337 Contra Costa Donner Canyon Mount Diablo 335 Comment
  POM212437  Juniperus californica Joseph A. Ewan 1933-10-15 8038 Contra Costa SW slope of Mt Diablo. 1067 Comment
  SEINET10531634  Juniperus californica Lewis S. Rose 1941-3-22 Rose 41052 Contra Costa Mt. Diablo, west slope. 915 Comment
  JEPS55998  Keckiella corymbosa L. R. Heckard and R. Bacigalupi 1968-6-27 Contra Costa Bald Ridge Mt. Diablo (along trail to Eagle Peak, ne of Deer Flat) 670 Comment
  UC306590  Keckiella corymbosa A. D. E. Elmer Jul 1903 4956 Contra Costa Mount Diablo Comment
  UC2028495  Kniphofia uvaria Barbara Ertter 1999-3-21 16487 Contra Costa Miller Knox Regional Shoreline, Protero Hills SW of Richmond, SE edge of eucalyptus grove S of northern water tank Comment
  POM300736  Koeleria macrantha Mary L. Bowerman 1932-4-16 1354 Contra Costa Eagle Point ridge above Twin Peaks ('1682' point) Comment
  UCD85717  Koeleria macrantha P. M. Booth 1932-5-1 725 Contra Costa El Cerrito. Comment
  CAS-BOT-BC340699  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon 243 Comment
  CAS-BOT-BC341475  Lagophylla ramosissima John Thomas Howell 1930-9-28 5494 Contra Costa Marsh Creek Road, 7 miles east of Clayton Comment
  CAS-BOT-BC341477  Lagophylla ramosissima Mary L. Bowerman 1930-10-19 487 Contra Costa Mount Diablo. South road at Garden-of-the-Gods Comment
  CDA22719  Lastarriaea coriacea Sue Bainbridge 2007-4-26 Byron-Airport- 5 Contra Costa Byron Airport. Comment
  JEPS103664  Lastarriaea coriacea David Gowen 2003-7-6 Contra Costa Lime Ridge Open Space, N end 182 Comment
  CAS-BOT-BC337975  Lasthenia californica Alice Eastwood 1921-4-18 10277 Contra Costa Antioch Comment
  CAS-BOT-BC337977  Lasthenia californica W. H. Brewer 1862-5-19 1120 Contra Costa North of Kirker's Pass Comment
  UC2027712  Lasthenia californica Barbara Ertter with Stu Garrett 1997-3-29 15528 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  JEPS10005  Lasthenia californica subsp. californica W. L. Jepson 1917-4-14 6864 Contra Costa Oakland Hills Comment
Read comments
Nov 18 2007
  JEPS10187  Lasthenia californica subsp. californica W. L. Jepson 1923-4-22 9874 Contra Costa open hillsides and slopes Mount Diablo Comment
  JEPS124445  Lasthenia californica subsp. californica Daniel Slakey with Randy Morgan 2015-4-3 90 Contra Costa Southwest corner at the intersection/curve of Raymond Rd. and Ames St. Comment
  UC135346  Lasthenia californica subsp. californica C. F. Baker 1903-4-28 2829 Contra Costa Marsh Creek Mt. Diablo Comment
  UC90073  Lasthenia conjugens T. S. Brandegee Jun 1884 Contra Costa Walnut Creek Comment
  UC1363767  Lasthenia ferrisiae Robert Ornduff 1958-4-15 4898 Contra Costa alkali flats next to road Byron Hot Springs Comment
  JEPS18258  Lasthenia fremontii Peter H. Raven with Mason, Stone, Ornduff, Kuijt 1957-4-4 10587 Contra Costa 3 mi s of Byron Comment
  UC1051497  Lasthenia fremontii Herbert L. Mason 1952-4-14 Contra Costa 3.5 mi s Byron Comment
  RSA516575  Lasthenia fremontii R. C. Bacigalupi, G. Thomas Robbins 1956-3-26 5533 Contra Costa About 2.5 miles S of Byron, just S of S.P.R.R. crossing on road to Bethany. Near head of Italian Slough. 6 Comment
  CAS-BOT-BC352925  Lasthenia glaberrima A. D. E. Elmer 1903-5-1 4321 Contra Costa Walnut Creek Comment
  CAS-BOT-BC352927  Lasthenia glaberrima A. D. E. Elmer 1903-5-1 4321 Contra Costa Walnut Creek Comment
  JEPS35366  Lasthenia glabrata subsp. glabrata W. L. Jepson 1923-4-22 Contra Costa Mt. Diablo Comment
  UC90071  Lasthenia glabrata subsp. glabrata K. Brandegee 1889-5-1 Contra Costa Antioch Comment
  UC697159  Lasthenia glabrata subsp. glabrata Mary L. Bowerman 1933-4-15 1865 Contra Costa Comment
  CAS-BOT-BC361123  Lasthenia microglossa Mary L. Bowerman 1932-3-27 1141 Contra Costa Mitchell Rock: Mount Diablo Comment
  UC1543176  Lasthenia minor Donald G. Nelson 1937-3-30 470 Contra Costa s of Byron (railroad tracks, paralleling the highway, on road to Tracy) Comment
  RSA8522  Lasthenia minor J. T. Howell 1933-3-29 10895 Contra Costa Nortonville Comment
  UC1184086  Lasthenia platycarpha Ren Hwa Shan 1947-3-23 2013 a Contra Costa vernal pool 3.3 mi s Byron 7 Comment
  CDA27128  Lathyrus jepsonii subsp. californicus D. G. Kelch 2007-4-29 7 .204 Contra Costa Carquinez Strait; Richmond; Chevy s Hill N. Hilltop Dr. Comment
  RSA138191  Lathyrus jepsonii subsp. californicus Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley. Comment
  RSA720812  Lathyrus jepsonii subsp. californicus Barbara J. Ertter, Dale Sanders, Dan Norris 1994-3-26 12331 Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road, southeast side of hill. 30 Comment
  JEPS78609  Lathyrus jepsonii var. jepsonii Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3301 Contra Costa Browns Island, South Landing Browns Island; , South Landing Comment
  CHSC39488  Lathyrus sulphureus Tyler Williams; V. Oswald 1984-4-18 21 Contra Costa Mt. Diablo. Ca. 5 yd e of turnout on Summit Rd., 0.1 mi e of Junction Ranger Station in Mount Diablo State Park. 609 Comment
  JEPS99993  Lathyrus vestitus A. Langston 2003-6-19 AL 51 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  POM19744  Lathyrus vestitus subsp. vestitus C. F. Baker 1903-4-28 2944 Contra Costa Mitchells Canyon, Mt. Diablo. Comment
  UC1300852  Lathyrus vestitus var. vestitus Helen K. Sharsmith 1962-4-18 4945 Contra Costa above Carquinez Straits (Crockett-Martinez road); San Francisco Bay Region 60 Comment
  UC1819260  Lathyrus vestitus var. vestitus Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12332 Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road, southeast side of hill, with dense patches of Wyethia angustifolia. 30 Comment
  CDA15250  Lavatera cretica G. F. Hrusa, D. Crowe 1998-5-8 14381 Contra Costa Sacramento Delta; Adjacent to Dow Ecological Reserve on Dow Chemical property at Pittsburg. Comment
  UC407377  Layia chrysanthemoides Ira L. Wiggins 1930-4-17 4572 Contra Costa .25 mi s Byron Comment
  CAS-BOT-BC323906  Layia chrysanthemoides Ira L. Wiggins 1930-4-17 4572 Contra Costa 1/4 mile S of Byron Comment
  CAS-BOT-BC321746  Layia gaillardioides Mary L. Bowerman 1935-4-17 2847 Contra Costa Mt. Diablo. North Road, 2 mi from North Gate, ridge west of chaparral. 335 Comment
  UC589705  Layia gaillardioides Douglas Horn 1938-4-24 61 Contra Costa w of Orinda 274 Comment
  UC691555  Layia gaillardioides Mary L. Bowerman 1933-4-22 1904 Contra Costa ridge w of upper end of Curry-Cave Point trail; Black Hills Comment
  UCSC000762  Layia gaillardioides H. M. Hall 1900-5-24 s.n. Contra Costa Mt. Lawson Comment
  CAS-BOT-BC321078  Layia glandulosa Alice Eastwood; John Thomas Howell 1936-4-19 2150 Contra Costa Antioch sand hills Comment
  JEPS40029  Layia glandulosa H. L. Mason 1932-3-20 Contra Costa Antioch Comment
  CAS-BOT-BC321085  Layia glandulosa Brandegee no date on sheet s.n. Contra Costa Antioch Comment
  POM361662  Layia glandulosa H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortoville, Small 'coal mine' ravine. Comment
  UC34544  Layia glandulosa E. R. Drew 1889-4-18 Contra Costa Comment
  UC614822  Layia glandulosa Beryl O. Schreiber 1932-3-27 161 Contra Costa Comment
  CAS-BOT-BC327245  Layia hieracioides M. K. Curran 1884-1-1 s.n. Contra Costa Plants of Mount Diablo. South of Turtle Rock, pool east of main pond: In belt of Eleocharia palustris. Comment
  CAS-BOT-BC327247  Layia hieracioides David D. Keck 1941-6-5 5307 Contra Costa Berkeley Hills, Fish Creek Rd., 0.25 mi W of E. portal of Broadway Tunnel 335 Comment
  UC30670  Layia platyglossa Edw. L. Greene 1892-6-20 Contra Costa Mount Diablo Comment
  UC697162  Layia platyglossa Mary L. Bowerman 1931-4-19 737 Contra Costa ridge s Deer Flat (Mt. Diablo); Mt. Diablo 838 Comment
  UC75378  Layia platyglossa unknown 1903-5-28 2874 Contra Costa Antioch Comment
  UC2028000  Layia platyglossa Barbara Ertter, Tony Morosco 1998-4-12 16019 Contra Costa Mount Olympia on north side of Mount Diablo, around rocks at summit. Comment
  CAS-BOT-BC274327  Leersia oryzoides Malcom A. Nobs 1948-9-23 681 Contra Costa Rock Slough, 7 miles south of Kingston Comment
  SACT001393  Leersia oryzoides Malcolm Nobs 1948-9-23 Contra Costa Growing in shallow water along slough bank, just coming to bloom. 7 miles south Kingston. Comment
  CDA9564  Lemna gibba D. G. Kelch 2007-6-17 7 .463 Contra Costa Carquinez Strait; Fernandez Ranch, Muir Land Trust. Franklin Canyon. 0 Comment
  UC692107  Lemna minuscula Mary L. Bowerman 1933-11-4 2459 Contra Costa Alder Springs, (most easterly of the springs) Alder Springs; Mount Diablo, Alder Springs 487 Comment
  CAS-BOT-BC215741  Lepechinia calycina Mary L. Bowerman 1932-9-3 1532 Contra Costa Muir Area, Mt. Diablo Comment
  UC691413  Lepechinia calycina Mary L. Bowerman 1933-9-3 2421 Contra Costa Mount Diablo. Spring North East of Saddle, below North Peak Ridge. Comment
  CAS-BOT-BC88707  Lepidium acutidens Annetta Mary Carter 1935-3-10 753 Contra Costa Kirker Pass road, south of junction with Nortonville road. 121 Comment
  OBI15025  Lepidium acutidens Robert F. Hoover 1967-4-28 10507 Contra Costa Byron Hot Springs Comment
  OBI60003  Lepidium acutidens Joseph Andorfer Ewan 1935-3-10 9136 Contra Costa Donovan rd Kicker Pass Comment
  CDA24907  Lepidium dictyotum var. acutidens Jim Jokerst 1989-3-29 3069 Contra Costa 0.25 mile south of Byron Hot Springs, northeast of Livermore. 0 Comment
  CAS-BOT-BC89713  Lepidium latifolium W. Knight; I. Knight 1977-5-22 s.n. Contra Costa Antioch Dunes. Comment
  CAS-BOT-BC89715  Lepidium latifolium Walter Knight; Joanne Dean 1978-8-14 3170 Contra Costa Brown Island. Comment
  JEPS111853  Lepidium latifolium A. G. Murdock 2004-5-28 301 Contra Costa Luzon 60 Comment
  UC1535348  Lepidium latifolium Ernest L. Gordon 1987-6-1 Contra Costa Martinez Regional Shoreline, across from the railroad depot, in park Martinez Regional Shoreline Comment
  CAS-BOT-BC89766  Lepidium latipes Barrett Anderson 1987-4-29 3483 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  JEPS53653  Lepidium latipes W. L. Jepson 1899-4-19 13370 Contra Costa Moraga Valley Comment
  CAS-BOT-BC89900  Lepidium nitidum Volney Rattan 1879-1-1 s.n. Contra Costa Antioch. Comment
  SBBG2518  Lepidium nitidum J. M. Tucker 1946-3-24 1380 Contra Costa hills between Nortonville and Somersville Comment
  UC1362354  Lepidium nitidum Olive Dyer 1936-3-25 214 Contra Costa e side Wildcat Canyon Comment
  UC402590  Lepidium nitidum I. J. Condit 1913-3-19 Contra Costa Walnut Creek Comment
  SEINET10735536  Lepidium oxycarpum Barbara J. Ertter, Dale Sanders; Daniel H. Norris 1994-3-26 Ertter 12337 Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road, west foot of hill near edge of marsh, openings in grassland. T2N R2W. Comment
  JEPS25136  Lepidium strictum G. Thomas Robbins 1959-4-26 4006 Contra Costa about 1 mi ne Giant (and about 0.25 mi n of San Pablo Oil Tank Farm) 7 Comment
  UCD32383  Leptosiphon ciliatus Beecher Crampton 1950-4-22 527 Contra Costa Contra Costa County, above Judsonville, south of the old Empire Mine around top and slopes of hills. 182 Comment
  UC88011  Lessingia nemaclada K. Brandegee 1883 Contra Costa Antioch Comment
  UC221462  Lessingia pectinata var. tenuipes Dr. Edward Palmer Aug 17 1892-Aug 20 1892 2678 Contra Costa Byron Hot Springs Comment
  JEPS25155  Leymus X multiflorus G. Thomas Robbins with John Weiler 1959-5-23 4026 Contra Costa Brooks Island San Francisco Bay, Richmond (slopes on w side) Comment
  RSA63664  Leymus condensatus Milo S. Baker 1950-5-22 12226 Contra Costa Roadside between Martinez and Pt. Costa Comment
  UC692427  Leymus triticoides Mary L. Bowerman 1935-6-28 3159 Contra Costa Inner Black Hills w meridian (flat on n side); Mount Diablo Comment
  RSA0026158  Leymus triticoides Barbara Ertter 2000-7-29 17448 -a Contra Costa Lower Donner Canyon just above Donner Cabin site, on north side of Mount Diablo. 213 Comment
  JEPS128148  Ligustrum ovalifolium Eric Wrubel 2010-10-1 NPS 2 Contra Costa Joh Muir National Historic Site, Martinez. Mount Wand trailhead. Comment
  UC1101455  Lilaeopsis masonii Herbert L. Mason April, 1954 Contra Costa n. end Antioch Bridge Comment
  UC1057450  Limnanthes douglasii subsp. nivea G. Thomas Robbins 1937-4-25 150 Contra Costa near Walnut Creek Comment
  JEPS17888  Limnanthes douglasii subsp. rosea Rimo Bacigalupi with G. T. Robbins 1956-3-26 5530 Contra Costa bottom-lands about 2 1/2 mi s Byron (just s of S.P.R.R. crossing of road to Bethany, near head of Italian Slough) 6 Comment
  UC971814  Limnanthes douglasii subsp. rosea Annetta Carter 1941-4-27 1635 Contra Costa 3 mi se Byron Comment
  SEINET6670612  Limnanthes douglasii subsp. striata B. Crampton 1968-3-27 8238 Contra Costa SE corner of County, ca. 3.5 miles south of Byron Comment
  SBBG117351  Limonium californicum B. Crampton 1950-8-5 632 Contra Costa San Pablo Canal, NW of Richmond Comment
  JEPS108215  Linanthus ambiguus David Gowen 2005-4-26 268 Contra Costa Mt. Diablo State Park. Clayton Oaks Rd. (dirt), which follows the ridge east of Donner Canyon, ca 20 feet south of junction with Bruce Lee Trail. Comment
  UC1602386  Linanthus ambiguus Mary L. Bowerman 1934-3-18 2481 Contra Costa w of Russelman Park (on the edge of Donner Canyon); Mount Diablo, Donner Canyon 381 Comment
  UC908685  Linanthus androsaceus Herbert L. Mason 1928-4-15 4349 Contra Costa e end Moraga Ridge Comment
  UC932049  Linanthus ciliatus Verne Grant and Alva Grant 1948-5-15 8503 Contra Costa on Sommerville to Antioch road; Sommerville Range Comment
  UC1051490  Linanthus liniflorus Herbert L. Mason 1952-4-14 14265 Contra Costa 3.5 mi s Byron Comment
  UC1819058  Linum bienne Barbara Ertter, Rich Rabeler 1994-6-6 12818 Contra Costa Point Isabel in south Richmond; black cinders on old railroad bed north of Costco; landfill. Comment
  CAS-BOT-BC430613  Lithophragma affine Lewis S. Rose 1933-4-17 33099 Contra Costa Walnut Creek Comment
  JEPS112265  Lithophragma affine D. G. Kelch 2005-3-11 05 .033 Contra Costa Franklin Canyon - McHarry Ranch Road.; McHarry Ranch Road off of Franklin Canyon Road Comment
  UC1618055  Lithophragma affine Donald G. Nelson 1937-3-30 467 Contra Costa along Marsh Creek Road between Claytonville and Byron; Marsh Creek Road Comment
  UC692420  Lithophragma affine Mary L. Bowerman 1933-4-15 1852 Contra Costa canyon S of Arroyo del Cerro Comment
  UC2028077  Lithophragma heterophyllum Barbara Ertter, Tony Morosco 1998-4-12 15997 Contra Costa Base of Mount Olympia on north side of Mount Diablo, talus above quarry NE of Olympia Trail. Comment
  UC1819053  Logfia filaginoides Barbara Ertter, Chris Thayer 1995-4-25 13994 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd. on north side Black Hawk Ridge. 548 Comment
  UC1819041  Logfia gallica Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14237 Contra Costa South side Mount Diablo, road to Sheepherders Springs 1/2 mile north of Curry Point from Sloan Road, clay at edge of grassland/woodland. 426 Comment
  UC672236  Logfia gallica H. L. Mason 1928-4-26 4386 Contra Costa Berkeley-Oakland Hills Comment
  CHSC21628  Lolium multiflorum Willis Ball 1975-4-19 524 Contra Costa Contra Loma Regional Park. In area #1. Immediately to the s side of the main parking lot at the s end of the lake. 33 Comment
  UC691199  Lolium multiflorum Mary L. Bowerman 1935-5-1 2940 a Contra Costa West [= North Rd.] road 2.1 mi from entrance Mount Diablo (just below the road, Mount Diablo); , West road [= North Rd.] 182 Comment
  SEINET2074966  Lolium multiflorum S. J. Gibbs 1970-3-27 Contra Costa Oak View Terrace, 3 mi. N.E. of P.O. 121 Comment
  UC1948973  Lolium perenne William J. Ferlatte, L. Maynard Moe 1970-4-27 1248 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC692429  Lolium perenne Mary L. Bowerman 1935-5-3 2967 Contra Costa Mount Diablo; Sloan Road 487 Comment
  CAS-BOT-BC269052  Lolium perenne D. E. Breedlove 1971-5-14 19340 Contra Costa Along Sierra Vista Way, Lafayette Comment
  UCD66671  Lolium temulentum K. Brandegee 1916-5-9 Contra Costa Byron Springs. Comment
  UC2028090  Lomatium californicum Barbara Ertter, Tony Morosco 1998-4-12 16000 Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  UC659027  Lomatium caruifolium var. caruifolium Mildred E. Mathias 1937-4-11 1163 Contra Costa 3 mi. s. Byron Comment
  UC659029  Lomatium caruifolium var. caruifolium Mildred E. Mathias 1937-4-11 1164 Contra Costa 3 mi S of Byron (along highway) Comment
  JEPS17127  Lomatium dasycarpum subsp. dasycarpum W. L. Jepson May 23-24 1891 14299 Contra Costa Mt. Diablo Comment
  POM132622  Lomatium dasycarpum subsp. dasycarpum H. P. Chandler 1901-4-5 982 Contra Costa Mt. Diablo. Comment
  RSA0029366  Lomatium dasycarpum subsp. dasycarpum Barbara Ertter, Susan D Alcamo 1994-4-24 12461 Contra Costa Mount Diablo east Walnut Creek, Bald Ridge Trail above Murchio Gap. 762 Comment
  POM301009  Lomatium macrocarpum Mary L. Bowerman 1935-4-26 2917 Contra Costa Contra Costa County: Ridge W of Indian Ceremonial Spring: Rocky ridge with S exposure. 1006 Comment
  UC692350  Lomatium nudicaule Mary L. Bowerman 1933-6-7 2251 Contra Costa Mt. Diablo, North Peak Saddle Comment
  UC692363  Lomatium nudicaule Mary L. Bowerman 1935-6-15 3127 Contra Costa Mt. Diablo, Mitchell-Pine divide, also large grassy ridge running n. Mt. Diablo, Mitchell-Pine divide 609 Comment
  UC691424  Lomatium utriculatum Mary L. Bowerman 1932-2-28 1091 Contra Costa ridge E of Rhine Canyon 487 Comment
  CAS-BOT-BC240417  Lonicera hispidula John Thomas Howell 1925-10-11 1489 Contra Costa Moraga Ridge, Oakland Hills Comment
  RSA666356  Lonicera japonica Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10694 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento and San Joaquin rivers opposite Pittsburg Marina; west end of island. Comment
  UC1051199  Lonicera japonica N. Floy Bracelin 1944-6-11 2723 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UCD137367  Lonicera subspicata M. Wiesendanger 1925-5-1 1480 Contra Costa San Miguel. Comment
  SBBG122846  Lotus corniculatus B. Ertter, K. Ertter 1995-7-11 14473 Contra Costa Sulfur Spring on Pine Crk, Diablo Foothills Regional Park SW of Walnut Crk 121 Comment
  UC692531  Lotus humistratus Mary L. Bowerman 1931-5-7 802 Contra Costa North Peak Ridge Mount Diablo Comment
  POM18639  Lotus humistratus C. F. Baker 1903-4-28 7481 Contra Costa Marsh Creek, Mt. Diablo. Comment
  UC555542  Lotus junceus var. biolettii H. L. Mason 1929-5-7 5262 Contra Costa Moraga Ridge Comment
  JEPS64884  Lotus junceus var. junceus W. L. Jepson 1944-7-23 27536 Contra Costa Moraga Ridge Comment
  UC692528  Lotus micranthus Mary L. Bowerman 1938-6-2 3655 Contra Costa Dan Cook Canyon Mount Diablo 487 Comment
  UC1129013  Lotus purshianus var. purshianus C. M. Belshaw 1936-5-13 2123 Contra Costa n of Horse Valley; Mt. Diablo Quad. 121 Comment
  JEPS55900  Lotus scoparius A. M. Ottley 1920-6-5 773 Contra Costa Moraga Ridge Comment
  UC1795732  Lotus scoparius var. scoparius Barbara Ertter, Brad Olson 1994-5-7 12761 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  RSA90338  Lotus scoparius var. scoparius E. E. Stanford 1930-5-24 1518 Contra Costa Marsh Creek Canyon. Comment
  JEPS108217  Lotus strigosus David Gowen 2005-4-27 270 Contra Costa Lime Ridge Open Space. In the southern section of the park on the east side of hill 724. Growing in sandy bare area along chaparral. Comment
  RSA498728  Lotus wrangelianus H. de Forest 1930-3-28 s.n. Contra Costa Mt. Diablo Comment
  UC15709  Lotus wrangelianus State Survey 1800-1 1166 Contra Costa Mt. Diablo Comment
  JEPS111572  Ludwigia peploides D. G. Kelch 2004-7-9 04 .299 Contra Costa Port Costa - Reservoir. Port Costa pond 28 Comment
  POM77723  Lupinus affinis C. P. Smith 1922-5-20 3531 Contra Costa Oakland - Walnut Creek Road. Comment
  UC149913  Lupinus affinis Katharine Brandegee 1911-7-6 Contra Costa along the RR near Point Isabel; along the RR near Point Isabel Comment
  CHSC21637  Lupinus albifrons Willis Ball 1975-3-9 486 Contra Costa In area #8. On n facing slope of large hill ca. 510 yds s of main parking lot ca. 750 yds w of Contra Loma Blvd. 124 Comment
  UC16053  Lupinus albifrons J. Burtt Davy 1895-4-7 873 Contra Costa Antioch Comment
  UC400154  Lupinus albifrons Ynes Mexia 1929-4-21 2378 Contra Costa Moraga Valley Comment
  UC1607647  Lupinus albifrons var. albifrons Barbara Ertter 1993-4-2 11474 Contra Costa along railroad w Crockett (base of n-facing bluffs at w end of Carquines Strait, San Pablo Bay); San Pablo Bay, w end of Carquines Strait Comment
  UC692574  Lupinus albifrons var. albifrons Mary L. Bowerman 1931-4-18 723 Contra Costa Mount Diablo; Mount Diablo, Sycamore Canyon Comment
  CAS-BOT-BC201376  Lupinus albifrons var. albifrons Charles Piper Smith 1922-4-14 3483 Contra Costa Antioch - Santa Fe Comment
  CAS-BOT-BC196217  Lupinus albifrons var. eminens C. F. Baker Apr. 25 2823 Contra Costa Antioch Comment
  JEPS25126  Lupinus arboreus G. Thomas Robbins 1959-4-18 3995 Contra Costa near and n Pt. Richmond (above Western Drive, western slopes of the Potrero Hills, Richmond); Richmond, near and n of Pt. Richmond 7 Comment
  JEPS112360  Lupinus bicolor Dean G. Kelch and Andrew G. Murdock 2004-5-28 288 Contra Costa Pinole Peak; County: Contra Costa. Comment
  JEPS112414  Lupinus bicolor Dean G. Kelch and Andrew G. Murdock 2005-4-15 05 .146 Contra Costa Rodeo Creek; county: Contra Costa; EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  UC73195  Lupinus bicolor Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  JEPS111069  Lupinus bicolor Lee Echols 2003-4-1 s.n. Contra Costa N of Lark Drive in SE portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  SEINET3134686  Lupinus bicolor L. S. Rose 1942-4-23 42013 Contra Costa Walnut Creek Comment
  UCD107322  Lupinus bicolor L. S. Smith 1916-5-10 s.n. Contra Costa Grand View Terrace - m. Richmond. Comment
  UCD32372  Lupinus bicolor Beecher Crampton 1950-4-1 498 c Contra Costa 1 mile north of Richmond, near S.P. Railroad tracks. 15 Comment
  UCD35142  Lupinus bicolor Beecher Crampton 1952-2 498 a-d Contra Costa 1 mile north of Richmond. Comment
  POM10667  Lupinus bicolor subsp. tridentatus H. P. Chandler 975 Contra Costa Between Pine Canyon and the Summit. Comment
  RSA203627  Lupinus bicolor subsp. tridentatus J. T. Howell 1933-5-14 11250 Contra Costa Hills east of St. Marys college Comment
  UC1073380  Lupinus bicolor subsp. umbellatus George B. Rossbach 1955-3-13 323 Contra Costa just e Antioch (along San Joaquin River); , just e of Antioch Comment
  POM23955  Lupinus densiflorus var. aureus Harriet Ann Walker 1911-7-8 2526 Contra Costa Near Point Isabel, east shore of San Francisco Bay. Comment
  UC2070453  Lupinus formosus Barbara Ertter 2004-6-27 18377 Contra Costa Kensington, ridge overlooking Wildcat Canyon behind Kensington Hilltop School. Comment
  UCD107777  Lupinus formosus L. S. Smith 1916-5-10 s.n. Contra Costa Grand View Terrace - San Pablo. Comment
  UC2029122  Lupinus formosus var. robustus Barbara Ertter with David Gowen 2013-4-19 21318 Contra Costa Southwestern Mount Diablo State Park southeast of Walnut Creek, upper end of Little Yosemite Trail at junction with Briones to Mount Diablo Regional Trail. Comment
  JEPS128772  Lupinus latifolius Kevin Hintsa 2000-6-30 Contra Costa Oyster Point Trail east of Oyster Point (=newly worked section of trail), Mount Diablo State Park. Comment
  UCR12299  Lupinus microcarpus Robin Maetche, Geoffrey Matthews 1971-7-4 s.n. Contra Costa 1 mi below North [Gate Road] entrance to Mt. Diablo State Park, Concord 427 Comment
  SEINET8056959  Lupinus microcarpus var. densiflorus H. A. Walker 1911-7-8 2526 Contra Costa Near Point Isabel, east shore of San Francisco Bay Comment
  JEPS65467  Lupinus microcarpus var. microcarpus W. L. Jepson 1921-5-22 9214 Contra Costa Mt. Diablo; Mt. Diablo, s slope 609 Comment
  UC1562540  Lupinus microcarpus var. microcarpus Barbara Ertter with Elizabeth Neese 1988-4-24 7453 Contra Costa between and parallel to Nortonville and Somersville roads Black Diamond Mines Regional Preserve sw Antioch; Black Diamond Mines Regional Preserve Comment
  UC201020  Lupinus microcarpus var. microcarpus Katharine Brandegee June 1918 Contra Costa along El Dorado St. Richmond Annex (Richmond Annex) Comment
  UC201027  Lupinus microcarpus var. microcarpus Katharine Brandegee June 1918 Contra Costa Richmond Annex Comment
  UC1129668  Lupinus pachylobus R. C. Wilson 1935-3-19 139 Contra Costa 2 mi nw Wall Pt.; Mt. Diablo Comment
  UC2070441  Lupinus pachylobus Barbara Ertter with Linda Vorobik 2002-4-6 17823 Contra Costa South side of Mount Diablo, roadside NW of Curry Point trailhead. Comment
  UCSB11258  Lupinus succulentus Hayes, Judy 1961-3-30 Contra Costa South Gate of Mount Diablo State Park 182 Comment
  UC2987  Luzula comosa W. H. Brewer 1862-5-23 1148 Contra Costa se Monte Diablo; se of Monte Diablo Comment
  JEPS48958  Luzula macrantha Elsa Kraeger 1926-3-7 Contra Costa South slope Mount Diablo Comment
  OBI21194  Luzula macrantha G. Thomas Robbins 1959-4-18 3987 Contra Costa Partial shade of Baccharis pilularis var. consanguinea at edge of Juncus effusus meadow overlooking San Pablo Bay, about 1/2 mile east of Pt. San Pablo, Richmond 8 Comment
  CDA1506  Lythrum californicum D. G. Kelch 1996-10-17 s.n. Contra Costa Carquinez Strait; Pt Edith Marsh Comment
  UC692638  Lythrum hyssopifolia Mary L. Bowerman 1933-8-2 2393 Contra Costa Mount Diablo, Boulevard Spring, by West Road Boulevard Spring; Mount Diablo, Boulevard Spring Comment
  SEINET1909920  Lythrum tribracteatum Barbara Ertter, Brad Olson 1991-1 10834 Contra Costa San Pablo Reservoir between Orinda and El Sobrante 91 Comment
  CAS-BOT-BC342681  Madia elegans Mary L. Bowerman 1936-9-10 3542 Contra Costa Mount Diablo. Donner Canyon 335 Comment
  UC33221  Madia elegans Jos. Burtt Davy 1895-1 Contra Costa Moraga Pass Comment
  CDA1585  Madia elegans subsp. densifolia D. G. Kelch 1998-10-2 s.n. Contra Costa Carquinez Strait; Martinez. Along N side of Pine St Entrance to W HWY 4. Comment
  CAS-BOT-BC344324  Madia exigua Joseph Andorfer Ewan 1936-5-24 9693 Contra Costa West slope Bald Peak, San Pablo Ridge Comment
  JEPS111711  Madia exigua D. G. Kelch 2004-5-9 04 .205 Contra Costa Crockett - Edwards Canyon; Upper Edwards Canyon 160 Comment
  UC2028296  Madia exigua Barbara Ertter with Dan Norris 1998-6-18 16215 Contra Costa Rock City area on south side of Mount Diablo, trail to Artist Point. Comment
  CAS-BOT-BC342981  Madia gracilis Barrett Anderson 1987-4-30 3499 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  CAS-BOT-BC342984  Madia gracilis Mary L. Bowerman 1933-6-3 2241 Contra Costa Mount Diablo. Ransom Point Ridge Comment
  CDA8360  Madia gracilis D. G. Kelch, A. G. Murdock 2004-4-25 4 .119 Contra Costa Carquinez Strait; W of Martinez along Carquinez Scenic Dr. Comment
  CHSC114300  Madia gracilis D. G. Kelch; D. A. Weinstein 2011-5-28 11 .540 Contra Costa Carquinez Strait Region.: W. of Martinez. N of end of Hillside Pl. 183 Comment
  CHSC39487  Madia gracilis Tyler Williams 1984-4-18 23 Contra Costa Mt. Diablo. On South Park Rd., ca. 20 yd nw of Bridal Nook Picnic Area, on e side of road in Mount Diablo State Park. 533 Comment
  UC691768  Madia gracilis Mary L. Bowerman 1931-5-21 889 Contra Costa Curry-Cave Point trail Comment
  UCD149006  Madia gracilis D. Kelch 2009-5-23 09. 293 Contra Costa Mt. Tamalpais. Ocean View Trail. 114 Comment
  UC2029060  Madia gracilis 'Barbara Ertter with Save Mount Diablo outing 2003-5-8 18167 Contra Costa Mangini property on knoll west of Mount Zion, NW corner of Mount Diablo. Comment
  SD8608  Madia radiata Katherine Curran Unknown Contra Costa Antioch Comment
Read comments
Jan 9 2007
  CAS-BOT-BC343585  Madia sativa R. E. Frenkel 1963-8-18 265 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  UC1861832  Madia sativa Barbara Ertter with Richard Rabeler 1994-6-18 12838 Contra Costa Pt. Pinole Regional Shoreline at north end of Richmond; northeast corner of park, near jct. Marsh Trail and Cook's Point Trail. Comment
  UC2029067  Maianthemum stellatum Barbara Ertter 2000-7-29 17437 Contra Costa Donner Basin on north side of Mount Diablo, Middle Trail below Falls Trail junction, at crossing of W Fork Donner Creek, with Berberis, shaded, surface water. Comment
  UC2027950  Malacothamnus fasciculatus Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17516 Contra Costa South side Mount Diablo, Pioneer Horse Camp. Comment
  SD70001  Malacothamnus fremontii Darley F. Howe 1968-5-20 4515 Contra Costa Nortonville. Comment
  UC1042342  Malacothamnus fremontii Lewis S. Rose 1954-6-29 54081 Contra Costa Nortonville Comment
  UC692618  Malacothamnus fremontii Mary L. Bowerman 1938-6-30 3696 Contra Costa below Blue Oak Flat; Mount Diablo 762 Comment
  UC961415  Malacothamnus fremontii John Thomas Howell and T. H. Kearney 1950-7-5 26635 Contra Costa Nortonville Comment
  RSA0027418  Malacothamnus fremontii Barbara Ertter, Joanne Kerbavaz, Mary Bowerman 2000-8-20 17516 Contra Costa South side of Mount Diablo, Pioneer Horse Camp. 884 Comment
  UC2029010  Malacothamnus fremontii Barbara Ertter with Dan Norris 1999-11-14 16853 Contra Costa Black Diamond Mines Regional Preserve, chaparral patch below east half of Miners Trail. Comment
  UC692621  Malacothamnus hallii Mary L. Bowerman 1938-11-12 3732 Contra Costa Mount Diablo 289 Comment
  CAS-BOT-BC204093  Malacothamnus hallii Mary L. Bowerman 1938-11-12 3732 Contra Costa Mount Diablo. Lime Ridge, on crest of ridge south of 1004 289 Comment
  UCD116361  Malacothamnus hallii Don C. Elfving 1964-4-26 62 Contra Costa North Gate Road, 3 miles from base of Mt. Diablo. Comment
  UC831151  Malacothrix floccifera Mrs. E. C. Sutliffe 1920-5-30 Contra Costa Mt. Diablo Comment
  UCD134393  Malacothrix floccifera P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CDA15229  Malva parviflora G. F. Hrusa, D. Crowe 1998-5-8 14358 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  CDA39046  Malva parviflora D. G. Kelch 2011-6-5 11 .575 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  JEPS77008  Marah fabacea Robert M. Lloyd 1963-3-17 2136 Contra Costa 0.5 mi e Grizzly Peak Road (on Skyline Drive (across from 7090 Skyline), Huckleberry trail) Comment
  UC2028576  Marah fabacea Barbara Ertter with Stu Garrett 1997-3-29 15540 Contra Costa West side Mount Diablo, north end of Mothers Trail. Comment
  JEPS63279  Marrubium vulgare L. Tinsley Sept. 1925 38 Contra Costa Mt. Diablo Comment
  CHSC23343  Matricaria discoidea Willis Ball 1975-3-26 507 Contra Costa Contra Loma Regional Park. In area #1. All around the restroom facilities at s end of lake. 30 Comment
  JEPS37068  Matricaria discoidea W. L. Jepson 1922-5-18 9647 Contra Costa Berkeley Comment
  CAS-BOT-BC348257  Matricaria occidentalis R. E. Frenkel 1964-4-8 419 Contra Costa Bixler Marsh Comment
  UC1606303  Medicago arabica Barbara Ertter, Chris Thayer 1993-5-7 11699 Contra Costa on Wildcat Canyon Rd. 1/2 mi e Inspiration Point (e of Tilden Park); East Bay Municipal Utilities District land, Hopkins Spring 304 Comment
  JEPS65507  Medicago polymorpha W. L. Jepson 1923-10-4 10213 a Contra Costa Antioch Comment
  UC692278  Medicago polymorpha Mary L. Bowerman 1931-4-4 640 Contra Costa 2 mi by road from west entrance (= North Gate); Mount Diablo Comment
  JEPS112333  Medicago sativa Dean G. Kelch and Andrew G. Murdock 2004-5-21 04 .219 Contra Costa Cummings Skyway; County: Contra Coasta; Exit from I-80 to Cummings Skyway. Comment
  UCD86382  Melica bulbosa M. Wiesendanger 1926-6-1 1530 Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC271218  Melica californica E. E. Stanford 1930-5-24 1516 Contra Costa Marsh Creek Canyon Comment
  POM300625  Melica californica Mary L. Bowerman 1935-5-1 2941 Contra Costa North road 4.4 miles from North Gate. Mount Diablo. 396 Comment
  SD218256  Melica californica William J. Ferlatte, L. Maynard Moe 1970-4-27 1260 Contra Costa San Francisco Bay, Red Rock Island, near summit. Comment
  UC692462  Melica californica Mary L. Bowerman 1935-4-17 2829 Contra Costa 2 mi from Mount Diablo West Road (North Rd) entrance (North Gate) (just w of chaparral); Mount Diablo 237 Comment
  UCD87005  Melica californica R. E. Cuendett 1915-4-18 s.n. Contra Costa Foot of Mt. Diablo. Comment
  CAS-BOT-BC281435  Melica imperfecta Beecher Crampton 1956-5-14 3405 Contra Costa S boundary of Mt Diablo State Park Comment
  UC1784152  Melica imperfecta Virginia E. Long 1933-6-14 221 a Contra Costa Mount Diablo, on slope SE-E, along first west fork from Curry Creek trail Comment
  UC692463  Melica imperfecta Mary L. Bowerman 1935-5-3 2956 Contra Costa hillside below Jungle of the Garden Gods (Fossil Ridge (Rock City Ridge)); Mount Diablo, Fossil Ridge (Rock City Ridge) 457 Comment
  UC691246  Melica torreyana Mary L. Bowerman 1935-5-3 2965 Contra Costa Sloan Rd; Mt. Diablo 487 Comment
  UCD161481  Melica torreyana A. A. Beettle 1941-3-28 1723 Contra Costa near Orinda. Comment
  CDA1109  Melissa officinalis D. G. Kelch 2005-7-14 5 .462 Contra Costa Carquinez Strait Region; Arroyo del Hambre; Franklin Creek near Glen Frazier. Comment
  UC19612  Mentzelia micrantha Edw. L. Greene 1892-6-24 Contra Costa Mt. Diaiblo Comment
  UC1795721  Mentzelia micrantha Barbara Ertter, Mary L. Bowerman 1994-6-19 12848 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit Parking Lot, roadside. Comment
  CDA33748  Mercurialis ambigua D. G. Kelch 2011-2-5 11 .018 Contra Costa Crockett below Zampa Bridge. 0 Comment
  SBBG18894  Micranthes californica E. R. Chandler 1962-3-13 317 Contra Costa slope of Bartlett Cyn ca. 4 mi N of ocean, Bishop Ranch Comment
  JEPS40629  Micropus californicus var. californicus W. L. Jepson 1923-4-22 9877 Contra Costa Mt. Diablo Comment
  JEPS40631  Micropus californicus var. californicus W. L. Jepson 1922-5-23 9664 Contra Costa Mt. Diablo Comment
  UC912408  Micropus californicus var. californicus Herbert L. Mason 1929-3-29 5129 Contra Costa Marsh Creek Road 2 mi e Clayton; Marsh Creek Road Comment
  UC1795832  Micropus californicus var. californicus Barbara Ertter, Lisa Schultheis 1995-4-27 14003 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Dr. 121 Comment
  UCD134487  Micropus californicus var. californicus P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo. Below old road. Comment
  CAS-BOT-BC348650  Micropus californicus var. subvestitus V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  JEPS18257  Microseris campestris Peter H. Raven with Mason, Stone, Ornduff, Kuijt 1957-4-4 10581 Contra Costa vernal flats 3.0 mi s Byron Comment
  CAS-BOT-BC348788  Microseris campestris Niall McCarten; V. I. Dains 1986-1-1 03231522 41 Contra Costa Ecos East Contra Costa County. W of Camino Diablo & Kellogg Creek Comment
  CAS-BOT-BC348884  Microseris douglasii subsp. douglasii A. A. Heller 1908-4-17 8901 Contra Costa Hills three miles south of Antioch 18 Comment
  CAS-BOT-BC348890  Microseris douglasii subsp. douglasii Alice Eastwood 1914-3-14 3800 Contra Costa Byron Springs Comment
  CAS-BOT-BC348891  Microseris douglasii subsp. douglasii Alice Eastwood 1921-4-18 10252 Contra Costa Antioch Comment
  UC1586069  Microseris douglasii subsp. douglasii Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8118 Contra Costa 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay, se Contra Costa County) Comment
  UC691433  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-11 697 Contra Costa toward mouth of Pine Canyon; Mount Diablo Comment
  UC71937  Microseris douglasii subsp. douglasii J. Burtt Davy 1895-4-7 966 Contra Costa Antioch Comment
  CAS-BOT-BC348894  Microseris douglasii subsp. douglasii K. L. Chambers 1953-4-25 449 Contra Costa Balfour Road, ca. 4 mi. w. of Brentwood and 1.8 mi. e. of its junction with Antioch-Briones Valley Road. (Deer Valley Road.) On e. side of Mount Diablo Range Comment
  SEINET10761171  Microseris douglasii subsp. douglasii Barbara J. Ertter, Stu Garrett 1997-3-29 Ertter 15527 Contra Costa West side Mount Diablo, Burma Road on Long Ridge, serpentine area (already drying out after 2 months without rain). Comment
  UC1819049  Microseris douglasii subsp. douglasii Barbara Ertter, Lisa Schultheis 1995-4-27 14012 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Dr. 121 Comment
  UC691432  Microseris elegans Mary L. Bowerman 1933-3-25 1763 Contra Costa (Diablo Stock Farm) (Stone Valley) Canyon Mount Diablo Comment
  CAS-BOT-BC349167  Microseris elegans K. L. Chambers 1953-4-25 448 Contra Costa Balfour Road, ca. 4 mi. w. of Brentwood and 1.8 mi. e. of its junction with Antioch-Briones Valley Road (Deer Valley Road). Foothills on east side of Mount Diablo Range Comment
  CAS-BOT-BC322766  Microseris sylvatica Alice Eastwood; John Thomas Howell 1936-4-19 2136 Contra Costa Nortonvile Comment
  UC2070514  Microseris sylvatica Barbara Ertter with David Gowen and Michael Park 2004-4-13 18357 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, upper part of N-facing slope below Black Diamond Trail, opposite Rose Hill cemetery. Comment
  SBBG6024  Microsteris gracilis J. M. Tucker 1946-3-24 1385 Contra Costa hills between Nortonville and Somersville Comment
  UCD118913  Microsteris gracilis Laurence S. Jones 1934-4-8 s.n. Contra Costa West slopes of Mt. Diablo. 609 Comment
  RSA469886  Microsteris gracilis subsp. gracilis H. de Forest 1930-4-6 s.n. Contra Costa [No locality information provided] Comment
  UC1055920  Mimetanthe pilosa N. Floy Bracelin 1944-9-9 2799 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  LA209144  Mimulus aurantiacus H. Lewis; 1940-7-5 sn Contra Costa E of Berkeley Comment
  UC691570  Mimulus douglasii Mary L. Bowerman 1932-2-28 1097 Contra Costa w Blackberry Spring; Mount Diablo 609 Comment
  UC1050851  Mimulus guttatus N. Floy Bracelin 1941-5-25 1321 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  RSA454334  Mimulus guttatus L. S. Rose 1941-3-27 41064 Contra Costa 2 mi. w. of Byron. 46 Comment
  UC1028683  Minuartia californica Herbert L. Mason 1932-3-20 6849 Contra Costa Antioch Sand Hills Comment
  CAS-BOT-BC388607  Minuartia douglasii A. D. E. Elmer 1921-6-11 s.n. Contra Costa Mt. Diablo summit Comment
  CHSC22998  Minuartia douglasii Robert A. Schlising 1962-4-26 2187 Contra Costa Coast Ranges. Mount Diablo, at Juniper Campground. Comment
  CAS-BOT-BC388586  Minuartia douglasii Mary L. Bowerman 1935-4-22 2889 Contra Costa Mount Diablo. Ridge west of Pioneer Road (west of Old Stage Road): Crest of ridge Comment
  UC1607684  Minuartia pusilla Barbara Ertter, Lynne Hosley 1993-4-17 11512 Contra Costa ca 10 air mi n Livermore (hills in lee of Mt. Diablo, edge of outcrop s of Hummingbird trail); Morgan Territory 609 Comment
  UC691412  Monardella douglasii Mary L. Bowerman 1930-6-22 369 Contra Costa Mitchell Canyon Trail, above main canyon Mount Diablo Comment
  RSA0022790  Monardella villosa subsp. subserrata Katherine Brandegee 1907-7-4 s.n. Contra Costa Martinez. Comment
  CHSC67994  Monardella villosa subsp. villosa James D. Jokerst 1987-6-16 2915 Contra Costa Livermore Valley, 0.3 mi W of Vasco Rd. and +/- 200 m SW of a dirt track. Comment
  SBBG27321  Monolopia gracilens L. S. Rose 1935-5-16 35166 Contra Costa Mt Diablo Comment
  UC697150  Monolopia gracilens Mary L. Bowerman 1933-5-9 2057 Contra Costa Muir area Mount Diablo (sw slope e of the rocks) Comment
  JEPS25355  Monolopia major Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6965 Contra Costa along Camino Diablo 1.9 mi w Byron (at road summit) 54 Comment
  UC50097  Monolopia major H. P. Chandler 1900-3-23 582 Contra Costa Briones Valley Mount Diablo Region Comment
Read comments
Feb 9 2019
  UC75188  Monolopia major unknown 1908-4-27 2796 Contra Costa Byron Comment
  UC90423  Monolopia major K. Brandegee May 1883 Contra Costa Antioch Comment
  CAS-BOT-BC349607  Monolopia major Ira L. Wiggins 1930-4-17 4563 Contra Costa 1 mi. east of Mountain House on road to Byron Comment
  CAS-BOT-BC349618  Monolopia major Mary L. Bowerman 1933-5-25 2196 Contra Costa Mount Diablo. Oyster Ridge: East of saddle (1300 feet) at west end of south face 396 Comment
  POM55549  Monolopia major C. F. Baker 1903-4-27 s.n. Contra Costa Byron. Comment
  JEPS68945  Montia fontana Edward Lee 1935-2-10 1273 Contra Costa Wildcat Creek Berkeley, Berkeley Hills Comment
  CHSC75113  Montia perfoliata Roger Thom 1987-4-17 1 Contra Costa 3300 block Johnson Rd. in Lafayette. 152 Comment
  SEINET5624176 Image available Myosotis sylvatica Betsey Northman 1961-1 36 Contra Costa Berkeley Hills, U.C. property; Dirt road leading N. toward Strawberry Canyon area 91 Comment
  CAS-BOT-BC83286  Myosurus minimus H. L. Mason 1932-3-20 6854 Contra Costa Briones road. Comment
  CAS-BOT-BC83288  Myosurus minimus Herbert L. Mason 1952-4-14 14263 Contra Costa 3.5 miles south of Byron. Comment
  CAS-BOT-BC83295  Myosurus minimus Peter H. Raven; D. Stone; H. L. Mason; R. Ornduff; et al. 1957-4-4 10584 Contra Costa 3.0 miles south of Byron. Comment
  CHSC68026  Myosurus minimus James D. Jokerst 1989-3-28 3058 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  UC480856  Myosurus minimus Katharine Brandegee 1909-4-24 Contra Costa Antioch Marsh Creek Antioch Comment
  CAS-BOT-BC83290  Myosurus minimus Herbert L. Mason 1952-4-14 14264 Contra Costa 3.5 miles south of Byron. Comment
  UC1738120  Myosurus sessilis D. E. Stone 1956-5-25 8 -31 Contra Costa 3 mi S of Byron ( on road to Herdlyn) Comment
  CDA19119  Myriophyllum spicatum R. M. Case 2001-5-8 PDR P 088776 Contra Costa Sierra Nevada; Mallard Reservoir on Arnold Industrial Way, Concord. 0 Comment
  CDA36299  Myriophyllum spicatum Ed Finley, Mark Lubinski 1988-9-26 Contra Costa Brentwood, Cruiser Haven Marina. 7000 Orwood Road. 0 Comment
  CDA28809  Nassella cernua D. G. Kelch, Jessica Kolman 2009-5-3 9 .315 Contra Costa Carquinez Strait; Crockett; on hill south of 5th St. with transmission tower on sandstone outcrop. Comment
  UC1133134  Nassella cernua C. M. Belshaw 1936-5-9 2083 Contra Costa 1/2 mi n Nortonville (Plot 14); Mt. Diablo Comment
  CAS-BOT-BC259902  Nassella lepida Mary L. Bowerman 1938-6-30 3701 Contra Costa Mount Diablo. Blue Oak Flat 822 Comment
  CAS-BOT-BC259906  Nassella lepida D. E. Breedlove 1970-4-18 17447 Contra Costa At the N edge of Lafayette above Laurel Drive 243 Comment
  UC60163  Nassella lepida Jos. Burtt Davy 1899-4-9 7863 Contra Costa Las Trampas Peak Comment
  CAS-BOT-BC60355  Nasturtium officinale D. E. Breedlove 1969-10-18 16722 Contra Costa Along Alhambra Valley Road near junction with Bear Creek Road, southeast of Pinole. Comment
  JEPS70310  Navarretia atractyloides K. Brandegee 1907-6-16 Contra Costa Judsonville Comment
  JEPS25390  Navarretia cotulifolia Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1959-4-14 7003 Contra Costa 8 mi. s. Antioch (low spot in Briones Valley, just off Deer Valley Rd.); Briones Valley 79 Comment
  JEPS105726  Navarretia gowenii David Gowen 2004-5-11 59 Contra Costa Lime Ridge Open Space. Summit area just south of the antenna facility. Comment
  SEINET11268198  Navarretia mellita Barbara Ertter 1999-6-12 16720 Contra Costa Knobcone Point Road on south side of Mount Diablo, head of NE fork of Sycamore Creek.; 0 488 Comment
  UC2013027  Navarretia mellita Barbara Ertter with Travis Columbus 1990-6-10 9100 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill; trail heading down ridge on N side of Briones Peak. Comment
  UC125036  Navarretia nigelliformis subsp. radians Katharine Brandegee 1907-6-16 Contra Costa near Antioch; Judsonville Comment
  UC2028276  Navarretia pubescens Barbara Ertter 1999-6-12 16700 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  UC2042984  Navarretia pubescens Barbara Ertter with Dan Norris 1998-6-18 16223 Contra Costa Devil's Slide Trail from Knobcone Point Road, south side of Mount Diablo. Comment
  JEPS112005  Navarretia squarrosa D. G. Kelch 2005-5-1 05 .191 Contra Costa Crockett - Edwards Canyon 150 Comment
  SEINET3696157 Image available Navarretia squarrosa Lewis S. Rose 1934-6-18 34288 Contra Costa Berkeley Hills. Comment
  UC106831  Navarretia viscidula K. Brandegee Contra Costa Antioch Comment
  UC1069147  Nemophila heterophylla H. S. Yates 1936-3-14 5359 Contra Costa Marsh Creek Mount Diablo Quad., Marsh Creek Comment
  UC1069152  Nemophila heterophylla R. C. Wilson 1935-3-27 145 Contra Costa 1/2 mi s Cave Pt.; Mt. Diablo Quad., s of Cave Pt. Comment
  UC67124  Nemophila heterophylla Harley P. Chandler 1901-4-5 949 Contra Costa Pine Canyon , Pine Canyon (Mt. Diablo) Comment
  POM65329  Nemophila heterophylla V. King Chesnut, E. R. Drew 1889-4-15 s.n. Contra Costa Martinez. Comment
  RSA75801  Nemophila heterophylla Lincoln Constance 1938-3-22 2031 Contra Costa Edge of Wildcat Canyon on north slope of the Berkeley Hills. 366 Comment
  RSA75806  Nemophila heterophylla Lincoln Constance, J. L. Morrison 1938-5-5 2190 Contra Costa Above Deer Flat near head of Mitchell Canyon, NW slope of Mt Diablo. 671 Comment
  JEPS111831  Nemophila menziesii var. menziesii D. G. Kelch 2005-3-25 05 .96 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 115 Comment
  UCD102389  Nemophila menziesii var. menziesii Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 890 Comment
  UC691708  Nemophila pedunculata Mary L. Bowerman 1932-3-27 1139 Contra Costa below Mitchell Rock (Mount Diablo); , below Mitchell Rock Comment
  UC2027953  Nerium oleander Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17509 Contra Costa North side Mount Olympia in Mount Diablo State Park, bulldozed site of former occupation at Zippe Spring. Comment
  UC407031  Nicotiana glauca Ira L. Wiggins 1930-4-18 4604 Contra Costa e end Jersey Island Comment
  UC691506  Nicotiana quadrivalvis Mary L. Bowerman 1936-6-20 3416 Contra Costa ridge w Mount Zion (w side of ridge, road bending up canyon to south); Mount Diablo 213 Comment
  JEPS99491  Nuttallanthus texanus Mary Bowerman 1995-5-28 Contra Costa Mount Diablo, Knoll 1000' N of Wall Pt. Trail. Trail to Pine Pond from Wall Pt. fire road half encircles it on W side. Comment
  CAS-BOT-BC140360  Oemleria cerasiformis Alice Eastwood 1915-5-30 4459 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC140361  Oemleria cerasiformis Alice Eastwood 1914-3-6 s.n. Contra Costa Redwood Canyon Comment
  JEPS112085  Oemleria cerasiformis D. G. Kelch 2004-3-5 04 .14 Contra Costa Sky Ranch Dutra Fire Road. Franklin Canyon 90 Comment
  RSA610758  Oemleria cerasiformis Joseph A. Ewan 1935-3-2 9081 Contra Costa wildcat canyon. Comment
  UC1005624  Oemleria cerasiformis Frank W. Gould 1940-3-2 873 Contra Costa n side Grizzly Peak 289 Comment
  UCSB2828  Oemleria cerasiformis Robbins, G. 1940-3-10 Contra Costa North slope of Grizzly Peak, Berkeley Hills 426 Comment
  CDA15227  Oenanthe sarmentosa G. F. Hrusa, D. Crowe 1998-5-8 14356 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  CDA38496  Oenanthe sarmentosa D. G. Kelch 2003-8-13 3 .1 Contra Costa Carquinez Strait Region; Martinez Marsh. 0 Comment
  CAS-BOT-BC171592  Oenothera deltoides subsp. howellii Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC171596  Oenothera deltoides subsp. howellii Peter Rubtzoff 1954-9-14 1756 Contra Costa Sand dunes along lower San Joaquin river, east of Antioch Comment
  RSA34666  Oenothera deltoides subsp. howellii P. A. Munz 1947-10-8 12201 Contra Costa Sand dunes east of Antioch 8 Comment
  UC35412  Oenothera deltoides subsp. howellii Chesnut and Drew 1889-4-18 Contra Costa Sand Hills Antioch Comment
  UC763071  Oenothera deltoides subsp. howellii R. F. Hoover 1937-5-14 2112 Contra Costa Antioch sand-dunes Comment
  CAS-BOT-BC171586  Oenothera deltoides subsp. howellii W. M. Klein 1958-6-9 433 Contra Costa Sandhills north of Antioch along the San Joaquin River channel. 1 Comment
  RSA0004532  Oenothera deltoides var. howellii Alice Eastwood, J. T. Howell 1936-4-19 2147 Contra Costa Sand dunes at Antioch Comment
  UC1606354  Oenothera elata Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10689 Contra Costa n Pittsburg (near confluence of Sacramento and San Joaquin Rivers, opposite Pittsburg Marina, dry levee near lagoon in center of w end of island); Browns Island Comment
  UCD40945  Oenothera laciniata Ron Unger 2004-3-30 s.n. Contra Costa Emerson parcel near Marsh Creek, just south of Big Break (flooded island) and Jersey Island area. North of town of Oakley and east of town of Antioch and 1 mile southwest of Dutch Slough. Comment
  UC1952821  Olea europaea Barbara Ertter with David Gowen 2010-11-17 20701 Contra Costa north face of Lime Ridge Open Space (City of Walnut Creek). Comment
  UC2028003  Olea europaea Barbara Ertter with Amy Rusev 1998-1-17 15902 Contra Costa Edge of Lime Ridge Open Space at NW foot of Mount Diablo, around former quarry [subsequently developed] on south side of Ygnacio Valley Road. Comment
  UC691744  Orobanche fasciculata Mary L. Bowerman 1935-5-22 3056 Contra Costa Saddle west of Twin Peaks Comment
  UC887954  Orobanche fasciculata Lewis S. Rose 1941-5-15 41243 Contra Costa Mt. Diablo, near summit. Comment
  CAS-BOT-BC499851  Orobanche fasciculata Alice Eastwood 1915-5-30 4536 Contra Costa Mt. Diablo Comment
  UC1586123  Orobanche fasciculata Barbara Ertter with Elizabeth Neese 1988-4-24 7451 Contra Costa Black Diamond Mines Regional Preserve SW of Antioch, above powerline road E of Nortonville Road. Comment
  UC306775  Orobanche vallicola A. D. E. Elmer Jul 1903 4958 Contra Costa Mount Diablo Comment
  POM181478  Orthocarpus purpurascens I. L. Wiggins 1930-4-17 4555 Contra Costa 1 mi E of Mountain House on road to Byron. Comment
  UC1555267  Osmorhiza berteroi R. C. Stebbins 1988-5-25 Contra Costa Memory and Packrat trails Tilden Park, Tilden Nature Area Comment
  UC2062643  Osmorhiza berteroi Barbara Ertter with Mike Park, David Gowen, and Victoria Seidman 2004-4-26 18370 Contra Costa Curry Canyon between Alder Creek and Rhine Canyon, south side of Mount Diablo. Comment
  UC692362  Osmorhiza brachypoda Mary L. Bowerman 1933-5-17 2108 Contra Costa branch of Curry due s Olafson's barn (near stream bottom); Mount Diablo 289 Comment
  SEINET920557  Oxalis corniculata August Hartman 1960-1 32 Contra Costa 2055 Carmel Drive, Concord. 22 Comment
  UC2028147  Packera breweri Barbara Ertter 1998-4-4 15966 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, and Indian Valley School. Comment
  UCD150909  Panicum capillare James A. Neilson Jr. 1972-10-22 3506 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  JEPS103101  Papaver californicum Mary L. Bowerman 1978-5-14 Contra Costa E face of Eagle Peak, ravine toward Twin Peaks from Back Creek Mount Diablo Comment
  UC2046368  Parthenocissus inserta Barbara Ertter 2015-10-9 22455 Contra Costa East edge of Dow Marsh along walkway west of Antioch marina on San Joaquin River delta. Comment
  CAS-BOT-BC259649  Paspalum dilatatum Virginia I. Dains; Walter Knight 1986-8-8 5498 Contra Costa Contra Costa - San Joaquin Delta Area. Jct Rock S1 and Werner Cut, above high water mark on east facing levee Comment
  CAS-BOT-BC259723  Paspalum distichum John Thomas Howell; Gordon H. True 1972-6-29 48941 Contra Costa Along Byron Hot Springs Road, SE of Byron Comment
  UCD88942  Paspalum distichum E. K. Stillwell 1967-7-17 s.n. Contra Costa Brentwood. Comment
  UC79144  Pectocarya penicillata T. S. Brandegee April 1889 Contra Costa Antioch Comment
  UC691635  Pectocarya pusilla Mary L. Bowerman 1933-4-22 1896 Contra Costa spur running nw Cave Point; Inner Black Hills Comment
  CHSC28128  Pedicularis densiflora R. A. Emmrich 1975-3-14 97 Contra Costa Ca. 1/2 mi w of Ranger Station no. 2 and 10 yds n of Diablo Rd., Mount Diablo State Park. 1127 Comment
  HSC101963  Pedicularis densiflora Nikolaus Gillen, Michelle Bihler 2014-3-20 15 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  UC480619  Pedicularis densiflora Carl Meyer 1928-2-22 290 Contra Costa Mount Diablo Comment
  UC886639  Pedicularis densiflora Alice Eastwood 1922-3-17 11084 Contra Costa Mount Diablo Comment
  UCD102373  Pedicularis densiflora Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Burma Road at Mount Diablo. 520 Comment
  JEPS106989  Pellaea andromedifolia J. Greenhouse with Kevin Hintsa 2004-4-5 5087 Contra Costa Mt. Diablo, Fire Interpretive Trail, Devil's Pulpit 1088 Comment
  UC399521  Pellaea andromedifolia Ivar Tidestrom June, 1895 Contra Costa Crockett Comment
  SEINET11713741  Pellaea andromedifolia M. T. Doutt 1930-1 90 Contra Costa Marsh Creek Comment
  RSA686984  Pellaea mucronata Mark Morris 1929-03 14909 Contra Costa Mount Diablo, Contra Costa Comment
  UC41706  Penstemon centranthifolius J. Burtt Davy 1895-4-7 889 Contra Costa Antioch Comment
  UC566668  Penstemon centranthifolius H. L. Mason 1929-3-31 5156 Contra Costa sand dike along San Joaquin River (Antioch); sand dike along San Joaquin River, Antioch Comment
  UC2028055  Penstemon centranthifolius Barbara Ertter with Amy Rusev 1998-1-17 15896 Contra Costa Lime Ridge Open Space at NW foot of Mount Diablo. Comment
  UCD124087  Penstemon centranthifolius M. Wiesendanger 1925-5-1 1481 Contra Costa San Miguel. Comment
  UCD124222  Penstemon heterophyllus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  NY601704  Penstemon heterophyllus var. heterophyllus W. L. Jepson 1921-6-16 9315 Contra Costa Mount Diablo Comment
  UC2028143  Penstemon heterophyllus var. purdyi Barbara Ertter 1998-4-4 15972 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Quarry Hill. Comment
  UC34652  Pentachaeta alsinoides Chesnut and Drew 1889-4-16 Contra Costa Martinez Comment
  UC691800  Pentachaeta alsinoides Mary L. Bowerman 1933-3-18 1753 Contra Costa Meridian Peak Mount Diablo (a little e of the meridian) Comment
  UC697210  Pentachaeta exilis Mary L. Bowerman 1935-5-8 2981 Contra Costa first main ridge e Pioneer Camp; Mount Diablo 762 Comment
  CAS-BOT-BC71614  Pentagramma triangularis D. E. Breedlove 1970-4-18 17426 Contra Costa at the north edge of Lafayette above Laurel Drive 243 Comment
  CHSC21633  Pentagramma triangularis Willis Ball 1975-3-9 490 Contra Costa In area #8. Ca. 560 yds sw of main parking lot ca. 800 yds w of Contra Loma Blvd. 137 Comment
  UCD137784  Pentagramma triangularis Herbert L. Mason 1924-11-23 1163 Contra Costa Las Trampas Ridge via Cashion. Comment
  JEPS41053  Pentagramma triangularis subsp. triangularis Rimo Bacigalupi and L. R. Heckard 1965-5-11 9078 Contra Costa sw of Richmond Brooks Isl; San Francisco Bay Comment
  UC691809  Perideridia oregana Mary L. Bowerman 1936-8-8 3525 Contra Costa Emmons Canyon Mount Diablo (w fork) Comment
  UCD161764  Persicaria James A. Neilson Jr. 1972-10-22 3505 Contra Costa Walnut Creek drainage at State Highway 4. (Exact location unknown. Coordinates and elevation estimated by label maker.) 1 Comment
  CAS-BOT-BC413499  Persicaria amphibia Walter Knight; I. Knight; J. T. Howell; et al 1978-9-5 3246 Contra Costa Brown's Island. Crooked Slough Comment
  JEPS112707  Phacelia breweri Dean W. Taylor 1994-3-30 14114 Contra Costa Mt. Diablo (in Mt. Diablo State Park); Juniper Camp, on west slope of Moses Rock Ridge; along fire road that begins at NW end of campground, about 125 m NW of the gate 883 Comment
  JEPS1451  Phacelia breweri Virginia Bailey 1939-5-3 Contra Costa near summit Mt. Diablo Comment
  UC198967  Phacelia breweri H. M. Hall and F. M. Essig 1916-5-31 10140 Contra Costa slopes s summit (type locality); Mount Diablo 1130 Comment
  UCD102377  Phacelia breweri Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 960 Comment
  POM65782  Phacelia breweri Herbert McLean Evans 1921-4-30 s.n. Contra Costa Mt. Diablo. Comment
  UC1618347  Phacelia californica Barbara Ertter, Chris Thayer 1993-5-7 11708 Contra Costa ca. 0.5 mi. n. Vollmer (=Bald) Peak (in EBMUD land e. of Tilden Park, just below ridge) 457 Comment
  UC762065  Phacelia californica R. F. Hoover 1938-2-21 2753 Contra Costa Point Richmond Comment
  UC901820  Phacelia californica Beecher Crampton 1950-4-22 533 Contra Costa along state hwy 4 in pass between Concord Valley and Pittsburg Comment
  JEPS73329  Phacelia distans Edward Lee 1935-3-10 1297 A Contra Costa e Antioch; Antioch Sand Dunes Comment
  UC1084500  Phacelia distans G. Thomas Robbins 1940-5-19 321 Contra Costa e Antioch (sand hills bordering river); San Joaquin River Comment
  UC762051  Phacelia distans R. F. Hoover 1937-5-14 2116 Contra Costa Antioch sand-dunes Comment
  UC881083  Phacelia distans Alice Eastwood 1915-5-30 4496 Contra Costa Mt. Diablo Comment
  UC672425  Phacelia distans Herbert L. Mason 1929-3-15 5053 Contra Costa canyon back of Nortonville Comment
  UCD120388  Phacelia distans Robt. Branstead 1934-3-30 s.n. Contra Costa SW slope of Mt. Diablo. 426 Comment
  CAS-BOT-BC6694  Phacelia distans var. australis Charles Fuller Baker 1903-4-28 2806 Contra Costa Antioch Comment
  UC24350  Phacelia divaricata W. H. Brewer 1862-5-7 1057 Contra Costa summit Monte Diablo Comment
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Sep 7 2009
  UC35545  Phacelia divaricata F. P. McLean 1800-1 Contra Costa Mt. Diablo Comment
  UC24356  Phacelia douglasii The Postmaster 1900-3-24 Contra Costa Oakley Comment
  UC672342  Phacelia douglasii H. L. Mason 1932-3-20 6838 Contra Costa Antioch Sand Hills Comment
  RSA170276  Phacelia imbricata subsp. imbricata W. L. Jepson 1918-6-5 7611 Contra Costa North Peak, Mt. Diablo. 945 Comment
  LA205630  Phacelia perityloides H. M. Hall; F. M. Essig 1916-5-31 10135 Contra Costa Mt. Diablo 347 Comment
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Mar 29 2015
  CAS-BOT-BC154326  Phacelia phacelioides H. M. Hall; F. M. Essig 1916-5-31 10135 Contra Costa Mount Diablo 1140 Comment
  UC691332  Phacelia phacelioides Mary L. Bowerman 1932-4-16 1343 Contra Costa Eagle Point Mount Diablo (n side) 670 Comment
  UC691579  Phacelia phacelioides Mary L. Bowerman 1935-5-8 2974 Contra Costa Muir Area Mount Diablo 1005 Comment
  SEINET5506855  Phacelia phacelioides L. Constance, C. W. Sharsmith 1940-4-27 2574 Contra Costa Mount Diablo, north of Juniper Camp 762 Comment
  CDA31462  Phacelia tanacetifolia D. G. Kelch 2006-5-27 6 .219 Contra Costa Pinole Valley Park, S of Pinole Valley Road near crest of El Sobrante Ridge. Comment
  JEPS101085  Phacelia tanacetifolia Dean W. Taylor 1992-4-16 12394 Contra Costa S of Byron Hot Springs, in swale draining on E margin of NE1/4 SE1/4 Section 34 45 Comment
  JEPS99511  Phalaris aquatica Mary Bowerman 1994-6-4 Contra Costa Mount Diablo. Pine Canyon at E end of Castle Rock Park, perhaps just outside park. Comment
  UC1101560  Phalaris arundinacea Malcolm A. Nobs 1948-9-23 683 Contra Costa 7 mi s Kingston (Rock Slough); Rock Slough Comment
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Oct 8 2012
  UCD89358  Phalaris paradoxa Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  CAS-BOT-BC250684  Phalaris paradoxa R. E. Frenkel 1964-4-18 428 Contra Costa 2.1 miles E. of Danville on Tassajara Road 129 Comment
  JEPS112007  Phlox gracilis D. G. Kelch 2005-3-25 05 .88 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak. 115 Comment
  JEPS71095  Phlox gracilis W. L. Jepson 1923-3-11 9846 Contra Costa Black Hills Mt. Diablo 396 Comment
  UC84850  Phlox gracilis Katharine Brandegee May 1886 Contra Costa Antioch Comment
  UC691715  Pholistoma auritum Mary L. Bowerman 1931-4-18 722 Contra Costa Sycamore Canyon Mt. Diablo, Sycamore Canyon 350 Comment
  UC1078910  Phoradendron macrophyllum Job Kuijt 1957-11-3 1439 Contra Costa 3 mi. s. of Wildcat Picnic area turn-off Mt. Diablo 548 Comment
  UC1078913  Phoradendron macrophyllum Job Kuijt 1958-1-12 1443 Contra Costa near Walnut Creek (Saranap); Saranap Comment
  CAS-BOT-BC141122  Phoradendron serotinum subsp. macrophyllum L. R. Abrams 1916-7-29 6307 Contra Costa Walnut Creek Comment
  UC1618238  Phoradendron villosum Barbara Ertter, Lynne Hosley 1992-8-29 11264 Contra Costa e Mt. Diablo (Morgan Territory Regional Preserve, along Condor Trail); Morgan Territory Regional Preserve Comment
  CAS-BOT-BC260891  Phragmites australis J. W. Congdon 1893-7-29 s.n. Contra Costa Martinez Comment
  UC311199  Phragmites australis A. D. E. Elmer July 1903 4541 Contra Costa Martinez Comment
  CAS-BOT-BC260890  Phragmites australis A. D. E. Elmer 1903-7-1 4541 Contra Costa Martinez Comment
  RSA666318  Phyla nodiflora Barbara Ertter, Brad Olson 1991-9-28 10828 Contra Costa San Pablo Reservoir between Orinda and El Sobrante. 91 Comment
  RSA0029680  Phyla nodiflora var. nodiflora Barbara Ertter, Tony Morosco 1998-9-18 16429 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, unmined land near north quarry area [subsequently developed]. 122 Comment
  UC2028238  Phyla nodiflora var. nodiflora Barbara Ertter, Tony Morosco 1998-9-18 16429 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  JEPS46474  Pickeringia montana W. L. Jepson 1919-1-25 8212 Contra Costa Moraga Ridge Comment
  UC1129854  Pickeringia montana var. montana R. W. Lundh 1932-8-27 149 Contra Costa 1 1/2 mi w Cave Point; Mt. Diablo Quadrangle 487 Comment
  UC1129855  Pickeringia montana var. montana R. W. Lundh 1932-8-20 135 Contra Costa 2 mi s Mt. Diablo (Rock City); Mount Diablo Quadrangle 502 Comment
  UC692672  Pickeringia montana var. montana Mary L. Bowerman 1933-2-4 1690 Contra Costa flat e Mt. Diablo-North Peak divide; Mount Diablo 822 Comment
  CAS-BOT-BC78543  Pinus coulteri J. W. Congdon 1894-10-16 s.n. Contra Costa Mt. Diablo Comment
  JEPS46810  Pinus coulteri W. L. Jepson 1931-4-5 15726 Contra Costa Nortonville Comment
  JEPS111991  Pinus pinea D. G. Kelch 2005-1-21 05 .7 Contra Costa Crockett Collected along railroad tracks in West Valona across from the decommissioned sewage treatment plant 15 Comment
  POM300617  Pinus sabiniana Mary L. Bowerman 1933-5-10 2069 Contra Costa One hundred feet below the Muir area. Comment
  UC692100  Pinus sabiniana Mary L. Bowerman 1933-5-10 2070 Contra Costa 100 ft below Muir Area Comment
  UC2028359  Piperia michaelii Barbara Ertter with Tony Morosco 1998-7-11 16367 Contra Costa North base of Mount Diablo, Coulter Pine Trail just east of Mitchell Rock Trail, N-facing slope Comment
  UC2028984  Piperia michaelii Barbara Ertter 2000-5-14 17011 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing. Comment
  CDA19635  Pittosporum undulatum M. I. Wibawa 2003-3-1 330 Contra Costa San Francisco Bay Area; Canyon Trail Park off Conlon Ave, El Cerrito. S 0 Comment
  CHSC116600  Plagiobothrys Lowell Ahart; Josephine Guardino 2016-4-19 20770 Contra Costa Undesignated section of Canada de Los Vaqueross Land Grant. 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS90088  Plagiobothrys acanthocarpus Dean W. Taylor 1992-4-16 12390 Contra Costa s. Byron Hot Springs (in swale draining in e. margins of coordinates); San Joaquin Valley, Clifton Court Forebay 7 1/2 USGS map 45 Comment
  RSA565113  Plagiobothrys acanthocarpus Wm. Taylor 1992-4-16 12390 Contra Costa S of Bryan Hot Springs, in swale draining on E margin of [the township and range] 46 Comment
  RSA666367  Plagiobothrys acanthocarpus Barbara Ertter 1989-4-5 8117 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton 0 Comment
  UC691333  Plagiobothrys bracteatus Mary L. Bowerman 1931-4-4 665 Contra Costa margins of dried-up pond w Turtle Rock; Mount Diablo Comment
  UC73948  Plagiobothrys bracteatus Harley P. Chandler 1901-3-22 878 Contra Costa Rodeo Canyon Comment
  UC2029139  Plagiobothrys bracteatus Barbara Ertter with Alan Prather 2003-6-7 18199 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, fenced pond in bend of east Highland Ridge Trail, 1/4 miles E of junction Stone Corral Trail. Comment
  UC2070494  Plagiobothrys bracteatus Barbara Ertter 2001-3-18 17568 Contra Costa Shell Ridge Open Space SW of Walnut Creek, Hammmill/Corral Spring Trail north of Ginder Gap. Comment
  UC2070495  Plagiobothrys fulvus Barbara Ertter with Kevin Hintsa et al. 2003-4-20 18150 Contra Costa Diablo Foothills Regional Park on west base of Mount Diablo, south end of trail west edge of Castle Rock Recreation Area. Comment
  UC575686  Plagiobothrys fulvus Alice Eastwood and John Thomas Howell 1935-4-7 2120 Contra Costa sandy hills on Marsh Creek Road near Byron Comment
  CAS-BOT-BC277  Plagiobothrys humistratus M. K. Curran 1884-1-1 s.n. Contra Costa near Antioch Comment
  RSA666360  Plagiobothrys leptocladus Barbara Ertter, J. D. Jokerst, D. Magney 1989-4-5 8129 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  JEPS68066  Plagiobothrys nothofulvus W. L. Jepson 1887-4-12 21155 Contra Costa Moraga Moraga Valley Comment
  SEINET12275872  Plagiobothrys scouleri H. M. Hall 1901-1 s.n. Contra Costa region of San Francisco Bay, Mt. Diablo, western base Comment
  HSC3502  Plagiobothrys stipitatus Greg Bos 1963-4-26 88 Contra Costa Pinole Valley Rd., SE of Pinole 76 Comment
  JEPS61072  Plagiobothrys stipitatus var. micranthus E. L. Greene 1889-3-24 Contra Costa Byron Comment
  OBI20600  Plagiobothrys stipitatus var. micranthus Robert F. Hoover 1967-4-28 10513 Contra Costa Byron Hot Springs Comment
  SD211568  Plagiobothrys stipitatus var. micranthus Barbara Ertter, Jim Jokerst and Dave Magney 1989-4-5 8126 Contra Costa Alkalai sink West and adjacent to Clifton Court Forebay, circa 15 airmiles Southwest of Stockton Comment
  UC78204  Plagiobothrys stipitatus var. stipitatus K. Brandegee 1889-5-1 Contra Costa Antioch Comment
  JEPS105697  Plagiobothrys tenellus David Gowen 2004-4-13 28 Contra Costa Lime Ridge Open Space. Ridge Trail, south of its junction with Blue Oak Trail, ca. 700' elev. Comment
  JEPS116832  Plagiobothrys undulatus David Gowen 2007-5-8 707 Contra Costa Briones Regional Park, in vernal depression northeast of Sindicich Lagoon. Comment
  POM283866  Plantago bigelovii subsp. bigelovii Annetta Carter 1933-4-9 291 Contra Costa About 2 miles southwest of Nortonville. Comment
  RSA756696  Plantago bigelovii subsp. californica Barbara J. Ertter, Jim Jokerst, Dave Magney 1989-4-5 8128 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  OBI11669  Plantago elongata Robert F. Hoover 1967-4-28 10516 a Contra Costa Byron Hot Springs Comment
  UC1314969  Plantago elongata R. F. Hoover 1967-4-28 10516 Contra Costa Byron Hot Springs Comment
  UC1745802  Plantago elongata Annetta M. Carter 1933-4-9 291 Contra Costa About 2 mi. SW of Nortonville. Comment
  CHSC106715  Plantago erecta Barbara Ertter; Jim Jokerst, Dave Magney 1989-4-5 8141 Contra Costa Alkali sink W and adjacent to CLifton Forebay, ca 15 air miles SW of Stockton, near sea level. Comment
  JEPS111996  Plantago erecta D. G. Kelch 2003-3-28 03 .88 Contra Costa Rodeo - Lone Tree Point 2 Comment
  JEPS68980  Plantago erecta Edward Lee 1935-3-29 1315 Contra Costa Nortonville, s watershed of Kirker Pass Kirker Pass, Nortonville Comment
  POM61262  Plantago erecta C. F. Baker 1903-4-25 2803 Contra Costa Antioch. Comment
  UC32534  Plantago erecta J. P. Tracy 1900-3-24 619 Contra Costa Point Richmond San Francisco Bay Region 15 Comment
  UC1950198  Plantago erecta Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8141 Contra Costa sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  CDA34009  Plantago lanceolata D. G. Kelch 2011-3-31 11 .081 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  JEPS86060  Plantago lanceolata William T. Hirano 1958-4-28 Contra Costa near Inspiration Point (Wildcat Creek Road, San Pablo Ridge e of Berkeley); San Pablo Ridge 304 Comment
  UC1818866  Plantago lanceolata Barbara Ertter, Kristin Ertter 1995-7-11 14475 Contra Costa Sulfur Spring on Pine Cr, Diblo Foothill Regional Park, marshy wet ground. 121 Comment
  UCD124602  Plantago lanceolata G. Thomas Robbins; S. Galen Smith 1958-6-2 3854 Contra Costa Along roadside just east of crossing of Hastings Slough on road between Port Chicago and Avon. 1 Comment
  CDA37397  Plantago major D. G. Kelch, Mike Perlmutter 2011-9-23 11 .761 Contra Costa Antioch. Dow Wetlands. Comment
  CHSC21614  Plantago major Willis Ball 1975-2-23 434 Contra Costa Contra Loma Regional Park. Small population in area #1 spread out in picnic area ca. 100 yds s of lake. 10 yds n of w end of parking lot. 45 Comment
  JEPS112000  Plantago major D. G. Kelch 2004-6-6 04 .227 Contra Costa Martinez - Train Station Downtown Martinez. Alhambra Creek near bay and railroad Station. Large perennial to 65 cm. In wet areas. 2 Comment
  JEPS87216  Plantago major Lauramay T. Dempster 1991-6-15 Contra Costa Orinda; 15 El Toyonal Comment
  JEPS22091  Plantago maritima var. juncoides G. Thomas Robbins 1958-7-19 3903 Contra Costa about 0.75 mi s Pt. San Pablo, Potrero San Pablo, Richmond; San Francisco Bay, Pt. Orient Comment
  CDA32860  Plantago subnuda D. G. Kelch 2010-10-5 10 .423 Contra Costa The Delta.; Antioch shoreline. West of Fulton shipyard. Comment
  UC1607651  Plantago subnuda Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10882 Contra Costa just w Antioch marina (levee at n-center of preserve, at end of road); Dow Wetlands Preserve Comment
  UC101592  Platystemon californicus Katharine Brandegee 1907-5-5 c Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC101593  Platystemon californicus Katharine Brandegee 1907-5-5 e Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC1328152  Platystemon californicus Olive Dyer April 1938 424 Contra Costa San Pablo Ridge Wildcat Canyon (just over on Orinda side); , Wildcat Canyon Comment
  UC50152  Platystemon californicus W. H. Brewer 1862-5-15 1095 Contra Costa Kirker's Pass Diablo Mountain (Diablo Mountain); , Kirker's Pass Comment
  PASA293  Plectritis ciliosa Annetta Carter 1929-3-31 Contra Costa Near Clayton Comment
  JEPS4797  Plectritis ciliosa subsp. ciliosa W. L. Jepson 1922-5-23 9665 Contra Costa Mount Diablo Comment
  UC691525  Plectritis ciliosa subsp. ciliosa Mary L. Bowerman 1933-4-9 1835 Contra Costa w fork of Donner Canyon, Mount Diablo Donner Canyon; Mount Diablo, Donner Canyon 243 Comment
  JEPS6156  Plectritis congesta L. T. Dempster 1954-6-4 Contra Costa N of Orinda Wildcat Canyon Road Comment
  JEPS111769  Plectritis macrocera D. G. Kelch 2004-4-3 04 .43 Contra Costa Marsh Creek Road cut about 1.5 miles west of Deer Valley Road. Comment
  UC55888  Plectritis macrocera H. M. Hall 1900-3-23 Contra Costa San Francisco Bay Region, San Pablo Creek San Pablo Creek; San Francisco Bay Region, San Pablo Creek Comment
  CAS-BOT-BC260945  Pleuropogon californicus var. californicus Ynes Mexia 1929-4-21 2388 Contra Costa Junction of Franklin Canyon Comment
  CAS-BOT-BC260947  Pleuropogon californicus var. californicus Peter Kamb; Francia Chisaki; Galen Smith 1951-4-14 1978 Contra Costa Margins of small pond 0.2 miles south of junction of Highways 4 and 21, 7 miles north of Walnut Creek Comment
  UCD90186  Pleuropogon californicus var. californicus R. Tofsrud 1946-4-1 s.n. Contra Costa Concord airfield. Comment
  JEPS40446  Pluchea odorata var. odorata R. F. Hoover 1937-8-31 2703 Contra Costa Avon Comment
  CDA29001  Poa annua D. G. Kelch 2006-5-7 6 .159 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC691190  Poa howellii Mary L. Bowerman 1935-5-18 3020 Contra Costa nw facing slope across rd from and a little e of Parking area; Mt Diablo 1066 Comment
  UC692329  Poa howellii Mary L. Bowerman 1933-5-22 2167 Contra Costa w of 1970 Inner Black Hills; Mt Diablo, Inner Black Hills Comment
  POM300703  Poa howellii Mary L. Bowerman 1933-3-21 2148 Contra Costa Below Grape Spring (south from Curry Canyon) Comment
  UCSB12522  Poa pratensis Grah, Nancy 1962-4-14 Contra Costa .2 miles north of Miner Rd. on Sleepy Hollow Lane, Orinda 182 Comment
  CAS-BOT-BC236389  Poa secunda subsp. secunda Mary L. Bowerman 1932-4-16 1358 Contra Costa Mount Diablo. Eagle Point Ridge, N of Eagle Point Comment
  CHSC25045  Poa secunda subsp. secunda Willis Ball 1975-3-9 480 Contra Costa In area #8. On slope of a hill ca. 510 yds. w of Contra Loma Blvd. 124 Comment
  UC1037102  Poa secunda subsp. secunda Leo Whitney 1935-4-21 3058 Contra Costa 1 mi nw Corral Hollow Comment
  UCD91671  Poa secunda subsp. secunda P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  SEINET7973850  Poa secunda var. secunda J. B. Davy 1899-4-19 7856 Contra Costa Las Trampas Creek Comment
  SEINET5554719  Poaceae J. Hamai 1985-1 s.n. Contra Costa Russell Reserve. Comment
  UC25592  Pogogyne douglasii subsp. parviflora W. L. Jepson May 23-24 1891 Contra Costa Mount Diablo Comment
  JEPS128782  Pogogyne serpylloides Kevin Hintsa 1999-5-25 Contra Costa Mount Diablo State Park, on Meridian Ridge Road a few yards from Deer Flat. Comment
  UC691130  Polygonum amphibium Mary L. Bowerman 1935-7-22 3185 Contra Costa Hidden Pond Mount Diablo (s side Meridian Peak, nw 1/4, section 12) 518 Comment
  UC1784185  Polygonum amphibium var. emersum Ethel Crum 1930-9-29 863 Contra Costa Marsh Creek Road to Holt Comment
  CDA37404  Polygonum argyrocoleon D. G. Kelch, Mike Perlmutter 2011-9-23 11 .759 Contra Costa Entry to Discovery Bay. Comment
  JEPS121070  Polygonum aviculare Dean G. Kelch and Andrew G. Murdock 2005-6-27 DGK 05 .396 Contra Costa Crockett. 6th Street at Lillian Street. Comment
  CDA15275  Polygonum aviculare subsp. rurivagum G. F. Hrusa, D. Crowe, R. York 1998-7-17 14712 Contra Costa Sacramento Delta; E end of Dow Chemical property at Antioch. Comment
  CDA33739  Polygonum odoratum White 2010-12-14 s.n. Contra Costa Oakley. 40 Meek Lane. 0 Comment
  UC1818962  Polygonum persicaria Barbara Ertter 1995-8-19 14504 Contra Costa Edge of Cerrito Creek on north side of Albany Hill, south edge of El Cerrito; dense weeds at edge of sluggish water. Comment
  RSA309337  Polypodium californicum Edward Lee, C. Belshaw 1935-12-28 1706 Contra Costa Southwest-facing slope, Las Trampas Ridge, Las Trampas Peak 442 Comment
  UC692122  Polypodium calirhiza Mary L. Bowerman 1933-12-2 2478 Contra Costa rocks by Alder Canyon Alder Canyon; Mt. Diablo 533 Comment
  JEPS45888  Polypogon monspeliensis Virginia Bufford 1932-4-18 578 Contra Costa Wildcat Canyon Comment
  UC790996  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa San Francisco Bay Point Richmond; , Point Richmond Comment
  CAS-BOT-BC237471  Polypogon viridis Mary L. Bowerman 1936-8-17 3527 Contra Costa Mount Diablo. Sulphur Spring in Pine Canyon 137 Comment
  RSA0026148  Polypogon viridis Barbara Ertter 1998-6-20 16256 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, wet margin of Willow Spring Pond south of Ginder Gap. Comment
  UC2028565  Polypogon viridis Barbara Ertter 1997-1-5 15440 Contra Costa Lime Ridge Open Space on northwest side of Mount Diablo, section on north side of Ygnacio Valley Road. Comment
  UC606764  Polystichum munitum Edward Lee 1936-4-19 1983 Contra Costa se slope of island Red Rock; San Francisco Bay Comment
  RSA760663  Polystichum munitum William J. Ferlatte, L. Maynard Moe 1970-4-27 1244 Contra Costa San Francisco Bay, Red Rock Island. Comment
  JEPS112037  Portulaca oleracea D. G. Kelch 2003-8-13 03 .111 Contra Costa Martinez Marsh 1 Comment
  CHSC106696  Potamogeton filiformis Barbara Ertter; Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10715 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento and San Joaquin rivers opposite Pittsburg Marina. Tangled masses in water at W end of island. Comment
  UC2046367  Potamogeton richardsonii Barbara Ertter 2015-10-9 22454 Contra Costa Antioch marina on San Joaquin River delta. Comment
  UC1100086  Potamogeton zosteriformis Malcolm A. Nobs, S. Galen Smith 1949-7-7 939 Contra Costa Webb Island, Sacramento Delta peat lands Webb Island; Sacramento Delta Comment
  JEPS112077  Potentilla anserina subsp. pacifica D. G. Kelch 2003-8-13 03 .107 Contra Costa Martinez Marsh 0 Comment
  NY436345  Potentilla frondosa E. L. Greene 1889-5-12 s.n. Contra Costa Comment
  SEINET8355888  Potentilla frondosa E. L. Greene 1889-5-12 Contra Costa Near Maritnez. Comment
  CDA23062  Potentilla glandulosa D. G. Kelch, D. A. Weinstein 2008-4-25 8 .078 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
Read comments
Jan 7 2016
  JEPS23820  Proboscidea lutea G. Thomas Robbins 1959-8-1 4114 Contra Costa roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette) 144 Comment
  UCD122075  Proboscidea lutea J. B. Calleri 1930-10-1 2149 Contra Costa Martinez, Cal. Comment
  CAS-BOT-BC508635  Prosartes hookeri Mary L. Bowerman 1933-4-22 1888 Contra Costa Curry-Cave Point Trail 426 Comment
  CAS-BOT-BC202303  Prosopis glandulosa var. torreyana Walter Knight; Irja Knight 1968-9-25 2251 a Contra Costa North entrance Contra Loma Regional Park, west side of road Comment
  JEPS99978  Prunus dulcis G. Smick 2003-2-18 GAS 63 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC12809  Prunus subcordata H. P. Chandler 1900-3-24 Contra Costa Briones Hills Region of Mount Diablo Comment
  UC2027995  Prunus subcordata Barbara Ertter with Tony Morosco 1998-4-12 16023 Contra Costa Mount Olympia on north side of Mount Diablo, midway down Olympia Road from summit. Comment
  UC467819  Prunus virginiana var. demissa V. King Chesnut 1888-4-11 Contra Costa Moraga Comment
  UCD35161  Pseudognaphalium beneolens Beecher Crampton 1950-7-29 624 Contra Costa Waste ground along Sante Fe R.R., 1 mile north of Richmond. Comment
  JEPS75547  Pseudognaphalium californicum P. F. Yorks 1975-7-5 467 Contra Costa ca 1.5 mi s Bear Creek Road (on Hampton Road in Hampton Road Natural Reserve, n of Briones Reservoir) 180 Comment
  SEINET9295311  Pseudognaphalium leucocephalum Unknown 1950-7-29 624 Contra Costa Waste ground along Santa Fe RR. 1 mi N of Richmond, gravelly soil Plant sent to USCH for identification. Query letter included on specimen. Comment
  UC1795643  Pseudognaphalium luteoalbum Barbara Ertter, Drew Hansen 1995-3-28 13938 Contra Costa Chevron oil refinery in northwest Richmond off of Castro St. edge of levees thru created bioremediation marsh south of Wildcat Creek. Comment
  CAS-BOT-BC356973  Pseudognaphalium luteoalbum John Thomas Howell; Gordon H. True 1972-6-29 48934 Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  JEPS75548  Pseudognaphalium ramosissimum P. F. Yorks 1975-8-29 491 Contra Costa on Hampton Road ca 1.6 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Preserve 180 Comment
  UC1584688  Pseudognaphalium thermale Jerry Powell Jul 14 1987-Jul 30 1987 1505 Contra Costa Point Molate Beach Point Molate Beach (chaparral and grassy meadow on bluffs above Bay edge) Comment
  SEINET3875503  Pseudotsuga menziesii Michael R. Tansey 1963-2-15 2 Contra Costa North end of Jewel Lake in Tilden Regional Park, California.; 0 152 Comment
  CAS-BOT-BC361831  Psilocarphus oregonus J. H. Thomas 1953-4-25 3000 Contra Costa 2 miles SW of Brentwood Comment
  UC88451  Psilocarphus oregonus T. S. Brandegee May 1886 Contra Costa Antioch Comment
  CAS-BOT-BC361879  Psilocarphus tenellus John Thomas Howell 1933-5-14 11230 Contra Costa St. Mary's College Comment
  UC694157  Psilocarphus tenellus Herbert L. Mason 1932-4-15 6926 Contra Costa summit of Road Moraga to Lafayette Comment
Read comments
Oct 6 2006
  RSA31229  Psilocarphus tenellus var. tenellus Joseph A. Ewan 1936-5-3 9497 Contra Costa Wildcat Creek near Orinda road bridge. Comment
  RSA126045  Ptelea baldwinii subsp. crenulata A. D. E. Elmer 1903-05 4327 Contra Costa Mount Diablo. Comment
  RSA15420  Ptelea baldwinii subsp. crenulata L. S. Rose 1936-4-24 36147 Contra Costa Marsh Creek. 6 miles E of Clayton. 61 Comment
  RSA448386  Ptelea baldwinii subsp. crenulata H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortonville, Small 'coal mine' ravine. 274 Comment
  CAS-BOT-BC148639  Ptelea crenulata W. L. Jepson 1918-6-5 7603 a Contra Costa Mt. Diablo, Donner Canyon Comment
  JEPS40167  Ptelea crenulata H. L. Mason 1928-3-31 Contra Costa Mt. Diablo Comment
  JEPS40168  Ptelea crenulata H. L. Mason 1928-3-31 Contra Costa Mt. Diablo Comment
  UC1277976  Ptelea crenulata B. Crampton 1957-7-9 4273 Contra Costa 2-3 mi nw Martinez (slopes above the Carquinez Straits) Comment
  UC137407  Ptelea crenulata C. F. Baker 1903-4-28 2943 Contra Costa Mitchell's Canyon; Mt. Diablo Comment
  UC1602321  Ptelea crenulata R. W. Lundh 1932-9-3 156 Contra Costa 1 mi n Mt. Diablo, North Peak; Mt. Diablo Quad. 609 Comment
  UC17380  Ptelea crenulata W. H. Brewer 1862-5-7 1052 Contra Costa n slope Mount Diablo 30 Comment
  UC194966  Ptelea crenulata H. M. Hall 1916-8-17 10277 Contra Costa 6 mi s Antioch; Upper Horse Valley 213 Comment
  UC34836  Ptelea crenulata Chesnut and Drew 1889-4-17 Contra Costa Summerville Comment
  CAS-BOT-BC148642  Ptelea crenulata H. E. McMinn 1922-6-2 95 Contra Costa In ravine on north slope of Mt. Diablo Comment
  CAS-BOT-BC148646  Ptelea crenulata Volney Rattan; Dr. Mary Curran 188 s.n. Contra Costa Unspecified Comment
  UC2028220  Ptelea crenulata Barbara Ertter with Christopher Baysdorfer 1998-5-10 16126 Contra Costa West side Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC2062647  Ptelea crenulata Barbara Ertter with Steve Matson 2003-11-11 Contra Costa Mount Diablo State Park, Deer Flat Road on north side of Moses Rock Ridge. Comment
  UC73566  Ptelea crenulata Milo S. Baker 1904-6-22 Contra Costa Mt. Diablo; above Walker's Comment
  UC2027949  Pyrus communis Barbara Ertter 1997-9-7 15790 Contra Costa North side Mount Diablo, cabin site on Donner Creek, in persisting orchard. Comment
  UC1748009  Quercus E. Dean, M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 656 Contra Costa Fossil Ridge, just below and 0.1 mi along fire rd that begins at the parking lot SE of Rock City and climbs onto Fossil Ridge in southeasterly direction Mount Diablo State Park 487 Comment
  UC2028228  Quercus X eplingii Barbara Ertter 1998-12-6 16469 Contra Costa Rock City area on southwest side Mount Diablo. Comment
  UC1135753  Quercus X morehus R. W. Lundh 1932-9-3 155 Contra Costa 1 mi n North Peak; Mt. Diablo Quad. 609 Comment
  UC691313  Quercus X morehus Mary L. Bowerman 1931-3-22 609 Contra Costa between Oyster Point and Cave Point; Mount Diablo Comment
  OBI14240  Quercus X morehus H. E. McMinn unk 367 Contra Costa 2-1/4 mi E of Redwood Peak on extension of the ridge Comment
  UC691324  Quercus agrifolia Mary L. Bowerman 1931-10-5 1053 Contra Costa head of Mount Diablo Creek, Marsh Creek Road Mount Diablo Comment
  UCD45129  Quercus agrifolia John Thomas Howell 1950-7-5 26638 Contra Costa Small tree, Nortonville, Contra Costa Co. Comment
  UC1481546  Quercus berberidifolia Neil Havlik 1980-5-15 918 Contra Costa Standard Oil Refinery, in a draw above asphalt plant Richmond Comment
  UC691312  Quercus berberidifolia Mary L. Bowerman 1935-11-30 3355 Contra Costa Fossil Ridge Mount Diablo Comment
  SEINET14301648 Image available Quercus chrysolepis Robert A. Norris, John L. Inase 1981-1 4152 Contra Costa Near North Gate Rd., Mt Diablo; on dry SW-facing slope 716 Comment
  UC691275  Quercus chrysolepis Mary L. Bowerman 1930-10-25 496 Contra Costa Sloan Road Mount Diablo Comment
  UCR247487  Quercus chrysolepis Dean Kelch 2011-5-4 11 .224 Contra Costa Central Coast, near Morgan Territory Regional Park, west of Morgan Territory Road 610 Comment
  UC691285  Quercus douglasii Mary L. Bowerman 1930-8-31 445 Contra Costa Dan Cook Canyon Mount Diablo Comment
  UCD45689  Quercus douglasii G. L. Stebbins, jr. 1945-10-14 3590 Contra Costa Northeast side of Mt. Diablo. Beside barn on road to old quicksilver mine. Comment
  CAS-BOT-BC86641  Quercus douglasii R. Bacigalupi 1922-9-24 s.n. Contra Costa lower end of Mitchell Canyon Comment
  CDA8370  Quercus garryana D. G. Kelch 2003-11-24 3 .342 Contra Costa Carquinez Strait; Between Bull Valley Staging Area and Port Costa. Comment
  CDA23104  Quercus kelloggii D. G. Kelch, D. A. Weinstein 2007-10-11 s.n. Contra Costa Carquinez Strait; Canada de Cierbo, just S of Crockett. Comment
  CDA23635  Quercus kelloggii D. G. Kelch 2007-10-6 7 .629 Contra Costa Carquinez Strait; Fernandez Ranch. Muir Land Trust Property 4.5 km W of Rodeo. Comment
  UC5819  Quercus kelloggii H. P. Chandler 1900-3-24 Contra Costa Orinda Park Mount Diablo Region Comment
  UCSB11595  Quercus kelloggii N. Grah 1962-4-14 110 Contra Costa 1.1 MI N OF TARRY LANE ON TAPPAN LANE ORINDA 243 Comment
  JEPS99998  Quercus lobata G. Smick 2003-2-18 GAS 64 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD81370  Quercus palmeri J. M. Tucker 1981-4-25 4453 -E Contra Costa Antonio Souza Ranch southwest of Byron. Mt. Diablo Meridian. 309 Comment
  RSA0016755  Quercus parvula var. shrevei Ellen Dean, Barbara Ertter, J. M. Tucker, C. Chaney 2000-9-13 650 Contra Costa City of El Sobrante; El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Road, junction of Heavenly Ridge Trail and Manzanita Trail. 213 Comment
  UC2070466  Quercus parvula var. shrevei Barbara Ertter 2000-9-2 17523 Contra Costa Sobrante Ridge Preserve in hills southeast of El Sobrante, Manzanita Trail near Heavenly Ridge Trail junction. Comment
  CAS-BOT-BC104710  Quercus wislizeni Mary L. Bowerman 1930-7-7 287 Contra Costa Mount Diablo. Summit Comment
  UCD47516  Quercus wislizeni R. W. Lundh 1932-8-17 129 Contra Costa 1 mile E. of Round Valley. Quadrangle: Mt. Diablo (Contra Costa), Sec. 9, T. 1S, R 2E. 304 Comment
  CAS-BOT-BC104711  Quercus wislizeni Mary L. Bowerman 1934-3-18 2480 Contra Costa Mount Diablo. Russelman Park: End of road Comment
  CAS-BOT-BC104714  Quercus wislizeni Peter Rubtzoff 1951-10-7 815 Contra Costa 1 to 2 mi SW of Moraga, near the road Comment
  UCD47649  Quercus wislizeni var. frutescens John M. Tucker 1941-9-26 410 Contra Costa Summit of Moraga Ridge, Contra Costa County, California. Comment
Read comments
Sep 13 2011
  UC691454  Rafinesquia californica Mary L. Bowerman 1932-4-27 1378 Contra Costa canyon w Riggs Canyon; Mount Diablo, s face Oyster Ridge 304 Comment
  UC9372  Ranunculus aquatilis Harley P. Chandler 1901-4-5 973 Contra Costa Mt. Diablo Comment
  RSA132889  Ranunculus aquatilis var. capillaceus Simon Simonian 1954-8-24 1311 a Contra Costa Entersprise Canal, east-west section crossing of McKinley Ave west of McDonough Ave., 2 miles north of Centerville. Main canal. Comment
  RSA0029781  Ranunculus aquatilis var. subrigidus Barbara J. Ertter, Alan Prather 2003-6-7 18190 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, pond NE of main trailhead. Comment
  UC1196239  Ranunculus californicus J. P. Tracy 1903-4-18 1804 Contra Costa e slope of hills beyond Bald Peak; Region about San Francisco Bay, Berkeley Hills 304 Comment
  UC70183  Ranunculus californicus J. Burtt Davy May 1898 Contra Costa Danville Region of Mount Diablo Comment
  UCD95957  Ranunculus californicus P. B. Kennedy 1916-5-11 s.n. Contra Costa Grand View Terrace; Richmond District. Comment
  POM268438  Ranunculus californicus Mary L. Bowerman 1931-2-22 521 Contra Costa Sycamore Canyon Comment
  UCD35997  Ranunculus californicus Beecher Crampton 1949-4-21 427 Contra Costa Contra Costa County, city of Richmond, in vacant lot near Santa Fe Railroad, S. 14th Street. 7 Comment
  UC692186  Ranunculus canus Mary L. Bowerman 1930-6-5 246 Contra Costa North Road 5.8 mi from entrance to park (near a stream in canyon); Mount Diablo Comment
  UC2028159  Ranunculus canus Barbara Ertter 1998-4-4 15952 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, south of Indian Valley School. Comment
  UC692171  Ranunculus canus var. canus Mary L. Bowerman 1932-3-23 1127 Contra Costa East of Donner Creek; Mount Diablo Comment
  POM268437  Ranunculus canus var. laetus Mary L. Bowerman 1931-3-8 563 Contra Costa W bank of Mitchell Canyon near mouth with oak and pines Comment
  UC692123  Ranunculus hebecarpus Mary L. Bowerman 1931-3-29 613 Contra Costa Riggs Canyon Mount Diablo Comment
  UC9445  Ranunculus hebecarpus Geol. Survey 1862-1 1049 Contra Costa Mt. Diablo; foothills Comment
  CDA33805  Ranunculus hebecarpus D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .113 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  POM269206  Ranunculus hebecarpus Mary L. Bowerman 1932-3-23 1130 Contra Costa Ridge E of Donner Canyon: At Saddle, in shade of Quercus Douglasii 274 Comment
  UC1618351  Ranunculus muricatus Barbara Ertter, Chris Thayer 1993-5-7 11716 Contra Costa e of Tilden Park (1/2 mi n of Vollmer (=Bald)Peak in East Bay Municipal Utiliteis District land); East Bay Municipal Utiliteis District land 304 Comment
  UC692145  Ranunculus muricatus Mary L. Bowerman 1933-6-21 2342 Contra Costa edge of stream near Bilbaren Lodge (s of house, n of barn); Mount Diablo, Donner Canyon Comment
  JEPS99487  Ranunculus sceleratus Mary Bowerman 1975-6-8 Contra Costa Mount Diablo, Pine Pond. Comment
  UC2027957  Ranunculus sceleratus Barbara Ertter with Joanne Kerbavaz 2000-8-20 17499 Contra Costa South side Mount Diablo, spring feeding Chase Pond. Comment
  CHSC116607  Raphanus raphanistrum Lowell Ahart; Josephine Guardino 2016-4-19 20772 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  JEPS100009  Raphanus raphanistrum G. Smick 2003-4-8 GAS 132 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS78175  Raphanus sativus Gary W. Zamzow 1973-1-26 124 Contra Costa 300 m. s. of Central Ave. overpass & 100 m. w. of Hoffman Blvd. Richmond (landfill at edge of Bay) Comment
  UC606739  Raphanus sativus Edward Lee 1936-4-19 1961 Contra Costa Red Rock, ne corner of the island Red Rock; San Francisco Bay Region, Red Rock Comment
  JEPS112063  Reseda alba D. G. Kelch 2004-4-11 04 .76 Contra Costa Crockett - Crolona Heights Hillside above Rolf Drive. Lower Crolona heights. 15 Comment
  UC1071553  Rhamnus californica N. French 1933-3-13 35 Contra Costa San Pablo, above Sheldon School San Francisco Quad. 91 Comment
  UC692596  Rhamnus californica Mary L. Bowerman 1932-11-26 1677 Contra Costa Pepperwood Springs (by w road not far from junction of roads) Mount Diablo Comment
  JEPS42029  Rhamnus californica subsp. californica W. L. Jepson 1924-6-25 10600 Contra Costa Moraga Ridge Comment
  CDA9186  Rhamnus crocea Christopher Thayer 1995-6-5 s.n. Contra Costa Carquinez Strait; W of Pinole Peak. Comment
  UC692584  Rhamnus crocea Mary L. Bowerman 1932-9-17 1579 Contra Costa Donner Canyon, w branch Mount Diablo Comment
  CAS-BOT-BC59897  Rhamnus ilicifolia H. E. McMinn 1922-6-2 90 Contra Costa N. slope of Mt. Diablo. Comment
  RSA498217  Rhus trilobata var. pilosissima H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortonville, Small coal mine ravine. 274 Comment
  JEPS77003 Image available Ribes amarum Robert M. Lloyd 1963-3-17 2133 Contra Costa 0.5 mi e Grizzly Peak Road (on Skyline Drive (across from 7090 Skyline Drive), Huckleberry trail); Huckleberry trail Comment
  POM274738  Ribes californicum Unspecified 1935-3-16 6268 Contra Costa Mt. Diablo, Walnut Creek watershed, Upper Sonora zone. Comment
  RSA128347  Ribes californicum Peter H. Raven 1950-3-5 1408 Contra Costa Happy Valley Road, 2.8 miles above intersection with Upper Happy Valley road. 244 Comment
  UC1127395  Ribes californicum C. M. Belshaw 1936-2-16 1592 Contra Costa 1 3/4 mi nnw Orinda; Concord Quadrangle, Bear Creek Comment
  UC69859  Ribes californicum H. M. Hall 1901-4-5 1758 Contra Costa Summit Mt. Diablo Region of San Francisco Bay Comment
  JEPS100039  Ribes californicum var. californicum S. O'Neil 2003-2-25 SEO 9 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA0025008  Ribes divaricatum var. pubiflorum H. P. Chandler 1900-3-17 s.n. Contra Costa Wildcat Canyon, Berkeley Hills. Comment
  CAS-BOT-BC168917  Ribes malvaceum Mrs. E. C. Sutliffe 1920-5-30 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC168922  Ribes malvaceum Alice Eastwood; John Thomas Howell 1936-4-19 2140 Contra Costa Nortonville Comment
  JEPS49338  Ribes malvaceum W. L. Jepson 1921-11-19 9514 Contra Costa halfway up to summit Mt. Diablo Comment
  RSA0021635  Ribes malvaceum J. T. Howell 1926-3-7 1667 Contra Costa Mt. Diablo. Comment
  JEPS22440 Image available Ribes menziesii Mary L. Bowerman 1930-6-10 314 Contra Costa summit Mt. Diablo Comment
  JEPS116868  Ribes menziesii David Gowen 2007-9-1 790 Contra Costa Huckleberry Regional Preserve. Along trail descending to canyon bottom near trail junction above creek. Comment
  UCD102488  Ribes sanguineum Robert L. Rudd; Krutzsch 1947-3-24 17 Contra Costa Wild Cat Canyon. Comment
  RSA0019062  Ribes sanguineum var. glutinosum Joseph A. Ewan 1934-3-10 8650 Contra Costa 1.5 mi. below Orinda road bridge, Wildcat Canyon. Comment
  SEINET13942922 Image available Ribes victoris Joseph Andorfer Ewan 1936-1 9739 Contra Costa Thickets along Wildcat Creek Comment
  CDA30988  Rigiopappus leptocladus D. G. Kelch, Abigail Moore 2010-4-7 10 .096 Contra Costa Mt. Diablo. Upper Mitchell Canyon. Comment
Read comments
May 4 2013
  UC697163  Rigiopappus leptocladus Mary L. Bowerman 1933-5-8 2016 Contra Costa n side near crest Fossil Ridge; Mount Diablo, n side near crest Fossil Ridge Comment
  JEPS111864  Rorippa nasturtium-aquaticum D. G. Kelch 2004-4-24 04 .98 Contra Costa Ca ada del Cierbo Upper Ca ada de Cierbo on fire road to cow barn along Cummings Skyway 70 Comment
  UC691057  Rorippa nasturtium-aquaticum Mary L. Bowerman 1930-6-5 244 Contra Costa West Road 5.8 mi from entrance Mount Diablo (West Road = North Road) Comment
  UC2062640  Rorippa palustris subsp. palustris Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19799 Contra Costa Mudflats at upper (south) end of San Pablo Dam Reservoir northwest of Orinda. Comment
  JEPS127093  Rorippa palustris var. occidentalis Lowell Ahart, Josephine Guardino 2016-4-19 20771 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  CAS-BOT-BC147407  Rosa californica Peter H. Raven 1957-7-5 11053 Contra Costa Point Isabel Comment
  UC136538  Rosa californica Katharine Brandegee 1907-7-4 Contra Costa marsh between Martinez and Port Costa Comment
  UC691148  Rosa gymnocarpa Mary L. Bowerman 1931-5-21 887 Contra Costa Curry-Cave Point trail Mount Diablo (where streambed forks and on w fork) 441 Comment
  CAS-BOT-BC148206  Rosa spithamea Alice Eastwood 1923-5-4 11705 Contra Costa Mt. Diablo Comment
  UC2028227  Rosa spithamea Barbara Ertter 1998-12-6 16470 Contra Costa Rock City area on southwest side Mount Diablo. Comment
  UC691164  Rubus discolor Mary L. Bowerman 1942-10-4 3853 Contra Costa Russelman Park road Mount Diablo Comment
  JEPS99977  Rubus ursinus G. Smick 2003-6-6 GAS 212 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2029018  Rubus ursinus Barbara Ertter 1999-7-17 16767 Contra Costa Tilden Regional Park, trail to Jewell Lake paralleling Wildcat Creek, through thick woodland growth. Comment
  UC1618384  Rumex conglomeratus Barbara Ertter, Diane Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10698 Contra Costa opposite of Pittsburg Marina (in center of w end of Browns Island n of Pittsburg near confluence of Sacramento and San Joaquin Rivers); Browns Island Comment
  UC692169  Rumex crispus Mary L. Bowerman 1935-5-30 3082 Contra Costa Donner Canyon stream Mount Diablo 152 Comment
  JEPS112030  Rumex obtusifolius Dean G. Kelch and Andrew G. Murdock 2005-4-24 DGK 05 .177 Contra Costa Franklin Canyon, Contra Costa County, CA. Collier Hill. West Carbon. Comment
  JEPS41050  Rumex pulcher Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9075 Contra Costa sw of Richmond (w side of Brooks Island); San Francisco Bay, Brooks Island 6 Comment
  CAS-BOT-BC433753  Rumex pulcher Mary L. Bowerman 1938-5-28 3644 Contra Costa Mount Diablo. Maple Spring Comment
  JEPS41049  Rumex salicifolius var. salicifolius Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9074 Contra Costa sw of Richmond (w side of Brooks Island); San Francisco Bay, Brooks Island 6 Comment
  UC2028073  Sagina apetala Barbara Ertter, Tony Morosco 1998-4-12 15994 Contra Costa Base of Mount Olympia on north side of Mount Diablo, base of quarry NE of Olympia Trail. Comment
  SEINET11268191  Salicornia europaea Barbara Ertter 1990-9-30 9656 Contra Costa Point Pinole Regional Shoreline, edge of sparina marsh at edge of salicornia marsh on SW corner of park; edge of San Pablo Bay.; 0 Comment
  JEPS111806  Salicornia virginica D. G. Kelch 2003-8-13 03 .98 Contra Costa Martinez Marsh 0 Comment
  JEPS22092  Salicornia virginica G. Thomas Robbins 1958-7-19 3904 Contra Costa about 0.75 mi s Pt. San Pablo, Potrero San Pablo, Richmond; San Francisco Bay, Point Orient Comment
  CAS-BOT-BC103737  Salix exigua Walter Knight; Irja Knight; John Thomas Howell; Elizabeth McClintock 1978-9-5 3218 Contra Costa Browns Island Comment
  CDA9516  Salix exigua D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .244 Contra Costa CA Delta; Along the old San Joaquin River Channel, S of Clifton Court Forebay and SE of Byron. Comment
  POM181455  Salix exigua I. L. Wiggins 1930-4-18 4587 Contra Costa Jersey Island. Comment
  CDA34023  Salix laevigata D. G. Kelch 2011-3-31 11 .079 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  JEPS112251  Salix laevigata D. G. Kelch 2004-5-7 04 .198 Contra Costa Canada del Cierbo 40 Comment
  POM300613  Salix laevigata Mary L. Bowerman 1933-5-10 2067 Contra Costa Spring on ridge below Indian Ceremonial Spring. Mt. Diablo. 976 Comment
  UC521720  Salix laevigata Joseph Andorfer Ewan 1933-10-15 8034 Contra Costa Indian Ceremonial Spring Mt. Diablo, Indian Ceremonial Spring Comment
  UC692054  Salix laevigata Mary L. Bowerman 1935-5-30 3085 Contra Costa by Donner Canyon stream Mt. Diablo 161 Comment
  CDA23063  Salix lasiolepis D. G. Kelch, D. A. Weinstein 2008-4-25 8 .087 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
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Jan 7 2016
  POM300610  Salix lasiolepis Mary L. Bowerman 1933-4-9 1830 Contra Costa Donner Canyon, W fork. Below Twin Peaks. Mt. Diablo. Comment
  CAS-BOT-BC129597  Salix lasiolepis var. lasiolepis Mary L. Bowerman 1933-4-9 1830 Contra Costa Donner Canyon, west fork: stream-bed, below Twin Peaks - Mount Diablo Comment
  UC1607511  Salpichroa origanifolia Barbara Ertter 1991-5-12 9818 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito, on San Francisco Bay Comment
  JEPS62550  Salvia carduacea Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  JEPS62663  Salvia columbariae Lauramay Tinsley 1927-4-19 Contra Costa Mount Diablo Comment
  POM223332  Salvia columbariae L. S. Rose 1935-5-16 s.n. Contra Costa Mt. Diablo. Comment
  SEINET13947331 Image available Salvia columbariae Lewis S. Rose 1935-1 35168 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC233288  Salvia mellifera Dr. A. Kellogg; W. G. W. Harford 1868-1-1 757 Contra Costa Diablo Comment
  JEPS12714  Sambucus mexicana Katharine Brandegee 1907-6-16 Contra Costa Antioch Comment
  JEPS12727  Sambucus mexicana W. L. Jepson 1908-8-16 3086 Contra Costa Walnut Creek Comment
  CAS-BOT-BC238635  Sambucus nigra subsp. caerulea Walter Knight 1965-3-1 894 Contra Costa Antioch dunes Comment
  CHSC21630  Sanicula bipinnata Willis Ball 1975-3-9 495 Contra Costa Contra Loma Regional Park. In area #8. At the peak of a large hill ca. 560 yds s of main parking lot ca. 800 yds w of Contra Loma Blvd. 152 Comment
  JEPS111610  Sanicula bipinnata D. G. Kelch 2003-4-3 03 .373 Contra Costa Martinez - West: Ozol Rock and Scenic Drive West Martinez. 118 Comment
  UCR66591  Sanicula bipinnata L. S. Rose 1934-3-21 34063 Contra Costa 3-6 mi east of Clayton Comment
  JEPS100132  Sanicula bipinnata G. Smick GAS 90 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD32382  Sanicula bipinnata Beecher Crampton 1950-4-22 526 Contra Costa above Judsonville, above old Empire Mine to south around top of hills. 182 Comment
  OBI70552  Sanicula crassicaulis D. G. Kelch, D. A. Weinstein 2008-4-25 8 .082 Contra Costa Alvarado Park (W end of Wildcat cyn park) on N facing hillside above Hundu temple i 122 Comment
  SBBG122982  Sanicula saxatilis B. Ertter et al. 1991-4-7 9728 Contra Costa Eagle Pk on Mt Diablo Comment
  JEPS955  Sanicula tuberosa W. L. Jepson 1922-5-23 9663 Contra Costa Mount Diablo Comment
  UC566823  Sanicula tuberosa H. L. Mason 1929-3-15 5049 Contra Costa Nortonville Comment
  UCD33150  Sasa borealis Beecher Crampton 1966-10-18 7815 Contra Costa Contra Costa County, Kensington, Berkeley Hills Blake Garden, UC Berkeley Dept. of landscape architecture. Comment
  JEPS43797  Saxifraga californica E. W. Hicks 1917-3-24 107 Contra Costa Mount Diablo 304 Comment
  UC692475  Saxifraga californica Mary L. Bowerman 1933-4-9 1837 Contra Costa w fork Donner Canyon; Mount Diablo, Donner Canyon 243 Comment
  UC1614337  Saxifraga californica Charles M. Belshaw 1935-3-3 371 Contra Costa in line with Grizzley Peak (opposite Dairy Ranch, on ne slope of San Pablo Reservoir, Berkeley Hills); Berkeley Hills, San Pablo Reservoir 487 Comment
  UC1795652  Scandix pecten-veneris Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13947 Contra Costa Mount Diablo State Park, grassy field along road at base of Mitchell Canyon. Comment
  RSA771187  Scandix pecten-veneris Barbara Ertter 1991-6-1 10072 Contra Costa Las Trampas Regional Wilderness in hills of Danville, paved portion of Rocky Ridge Trail ca 1 mile from parking lot 488 Comment
  UCD128067  Scandix pecten-veneris Morris Halperin 1929-4-21 s.n. Contra Costa Morago Valley. Comment
  CAS-BOT-BC111483  Schoenoplectus americanus K. (Mrs.) Brandegee 1882-6-8 s.n. Contra Costa Antioch Comment
  SEINET10319578  Schoenoplectus americanus W. Knight 1977-6-10 s.n. Contra Costa Sand Creek near coal-mining site of Stewartville 158 Comment
  CAS-BOT-BC111463  Schoenoplectus californicus Walter Knight; Irja Knight 1977-5-22 s.n. Contra Costa Growing at site of little corral. Antioch Dunes. Comment
  UC407366  Schoenoplectus californicus Ira L. Wiggins 1930-4-18 4592 Contra Costa Levee bank , Levee bank (Jersey Island) Comment
  UC1950189  Schoenoplectus californicus Barbara Ertter 1990-9-10 9639 Contra Costa Briones Regional Park, Briones Hills S of Martinez, at margin of main Sindicich Lagoon Comment
  UC692181  Scirpus acutus var. occidentalis Mary L. Bowerman 1938-9-17 3715 Contra Costa by the rivulet and in the marsh Big Spring Mount Diablo, Big Spring 731 Comment
  JEPS111886  Scirpus cernuus D. G. Kelch 2003-8-13 03 .120 Contra Costa Martinez Marsh 0 Comment
  JEPS111881  Scirpus maritimus A. G. Murdock 2004-5-28 300 Contra Costa Luzon 60 Comment
  UC692092  Scirpus microcarpus Mary L. Bowerman 1938-9-17 3716 Contra Costa Big Spring , Big Spring (Mount Diablo) Comment
  UC692194  Scirpus microcarpus Mary L. Bowerman 1942-10-4 3851 Contra Costa Mount Diablo Mount Diablo (Russelman Park Road) 243 Comment
  CHSC39483  Scutellaria tuberosa Tyler Williams 1984-4-18 17 Contra Costa In 10 yd radius of site 4 at Juniper Camp on Summit Rd. in Mount Diablo State Park. 853 Comment
  UC2029121  Scutellaria tuberosa Barbara Ertter with David Gowen and Mike Park 2004-4-13 18352 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, trail system in chaparral/woodland S of Somersville townsite. Comment
  UC565460  Scutellaria tuberosa Herbert L. Mason 1928-4-15 4342 Contra Costa top of Moraga Ridge Comment
  SEINET3153355  Scutellaria tuberosa L. S. Rose 1940-4-30 40250 Contra Costa Marsh Creek, 4 mi. E of Clayton 91 Comment
  CAS-BOT-BC240055  Secale cereale Alice Eastwood 1921-4-18 10313 Contra Costa Antioch Comment
  UC692320  Sedum spathulifolium Mary L. Bowerman 1935-6-15 3141 a Contra Costa on rocks just above Ransom Point (Meridian Peak, Mount Diablo); Mount Diablo, Meridian Peak, above Ransom Point Comment
  UC1606370  Senecio aronicoides Barbara Ertter, Brad Olson 1992-4-13 10953 Contra Costa Knobcone Point Rd ca 1 mi from Curry Point; Mount Diablo State Park 487 Comment
  UC691354  Senecio aronicoides Mary L. Bowerman 1933-5-21 2146 Contra Costa just below Grape Spring (s from Curry Canyon, Mount Diablo); Mount Diablo Comment
  JEPS79323  Senecio flaccidus var. douglasii Edward Lee with Annetta Carter 1935-8-17 1634 Contra Costa Antioch Comment
  CDA9545  Senecio vulgaris D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .224 Contra Costa Byron Airport. Comment
  UCD159537  Senecio vulgaris D. S. Park 2010-12-7 268 Contra Costa Growing in ditch along San Pablo Ave. 75 Comment
  SBBG363  Sequoia sempervirens J. M. Tucker 1946-3-14 1377 Contra Costa ca. 200 yds S of summit of Redwood Peak Comment
  UC1050201  Sequoia sempervirens N. Floy Bracelin 1942-12-13 1712 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA37437  Sesbania punicea D. G. Kelch, Mike Perlmutter 2011-9-23 11 .764 Contra Costa Antioch. Dow Wetlands. Comment
  SEINET3840815  Sesuvium verrucosum Unknown 2006-7-14 6 .329 Contra Costa East of Martinez, Along Marine Vista avenue immediately west of Pacheco Slough 1 Comment
  UC2028515  Setaria pumila Barbara Ertter 1996-11-24 15420 Contra Costa West side of Mount Diablo, upstream from Pine Pond along Stage Road in Pine Canyon, floodplain at junction with Dusty Road Comment
  UC1614106  Sherardia arvensis Charles M. Belshaw 1935-6-24 789 Contra Costa ca. 1/2 mi. e. Grizzly Peak (Bald Peak); Bald Peak Comment
  OBI12311  Sidalcea malviflora subsp. laciniata G. Thomas Robbins, John Weiler 1959-5-23 4028 Contra Costa On the W side of Brooks Island, San Francisco Bay, Richmond Comment
  JEPS111791  Silene gallica D. G. Kelch 2005-5-13 05 .242 Contra Costa Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 Comment
  JEPS100172  Silybum marianum G. Smick 2003-5-15 GAS 193 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1070221  Silybum marianum R. C. Wilson 1935-3-12 120 Contra Costa 1 1/2 mi ne Danville; Mt. Diablo Quad. Comment
  UCR16901  Silybum marianum M. Wexler 1973-5-22 s.n. Contra Costa El Sobrante, across the street from the intersection of Jo-lin Ct. and Valley View Rd. 45 Comment
  SEINET10760843  Silybum marianum Bonnie C. Templeton 1962-6-24 Templeton s.n. Contra Costa on the road to Mt. Diablo Comment
  CDA9510  Sinapis arvensis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .237 Contra Costa CA Delta; Along Clifton Court Near Clifton Court Forebay. Comment
  UC691259  Sinapis arvensis Mary L. Bowerman 1938-5-25 3634 Contra Costa North Road 2 mi from North Gate (Mount Diablo); , North Road 182 Comment
  UC2028152  Sinapis arvensis Barbara Ertter 1998-4-4 15959 Contra Costa Shell Ridge Open Space northwest of Mount Diablo. Comment
  JEPS100079  Sisymbrium officinale A. Langston 2003-6-19 AL 48 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC24717  Sisyrinchium bellum G. Strang 1976-4-13 12 Contra Costa Hills directly S.W. of archery range in Briones Park. 182 Comment
  JEPS64283  Sisyrinchium bellum W. L. Jepson 1922-5-23 9670 Contra Costa n slope Mount Diablo Comment
  UC692093  Sisyrinchium bellum Mary L. Bowerman 1931-3-14 573 Contra Costa e side Cave Point; Mount Diablo Comment
  UC1300917  Smilacina racemosa Helen K. Sharsmith 1962-4-18 4962 Contra Costa n-facing slope near Canyon; San Francisco Bay Region 182 Comment
  JEPS112504  Smilacina stellata A. G. Murdock 2004-4-30 246 Contra Costa Vaca Canyon 165 Comment
  NY751923  Solanum californicum D. D. Keck 1933-11-2 2619 Contra Costa 1 mi. S.E. of Oakley. Comment
  CDA18838  Solanum elaeagnifolium C. Roybal 1999-7-28 PDR 1219307 Contra Costa Corner of Oltara and Lone Tree, Brentwood. 0 Comment
  CDA20181  Solanum elaeagnifolium A. Niang 2003-7-9 PDR 1406328 Contra Costa San Francisco Bay Area; Brentwood. 0 Comment
  CAS-BOT-BC157454  Solanum umbelliferum A. Eastwood 1915-6-21 4728 Contra Costa San Leandro Comment
  JEPS75486  Solanum umbelliferum P. F. Yorks 1974-3-22 118 Contra Costa 1.8 km s of Bear Creek Road on Hampton Road (in Hampton Road Natural Reserve, n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  UC176058  Solanum umbelliferum Dr. J. H. Goodspeed 1913-5-3 Contra Costa Moraga Valley Comment
  UC456217  Solanum umbelliferum I. J. Condit 1908-8-20 Contra Costa Oakley Comment
  UCD127012  Solanum umbelliferum Robert C. Bechtel 1952-4-12 56 Contra Costa West side Mount Diablo. 914 Comment
  CDA15259  Sonchus asper G. F. Hrusa, D. Crowe 1998-5-8 14390 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  CDA29496  Sonchus asper D. G. Kelch, Troy MacGregor 2009-5-1 9 .269 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  CAS-BOT-BC365985  Sonchus asper John Thomas Howell 1933-5-14 11248 Contra Costa Hills east of St. Mary's College Comment
  JEPS100168  Sonchus oleraceus G. Smick 2003-3-27 GAS 99 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC374593  Sonchus oleraceus Walter Knight; Irja Knight; J. T. Howell; E. McClintock; et al 1978-9-5 3225 Contra Costa Browns Island. Sandy Knob Comment
  UCD146721  Sonchus tenerrimus G. F. Hrusa; D. Crowe 1998-5-8 14376 Contra Costa Sacramento-San Joaquin River Delta. On Dow Chemical property at Pittsburg. Adjacent to shore of San Joaquin River. 2 Comment
  CAS-BOT-BC236610  Spartina foliosa Richard W. Pohl 1952-9-9 7198 Contra Costa Along San Francisco Bay, El Cerrito Comment
  CAS-BOT-BC236611  Spartina foliosa John Thomas Howell 1932-10-8 10793 Contra Costa Mouth of Rodeo Creek Comment
  CDA42411  Spartium junceum D. G. Kelch, Vince Guise 2012-7-26 12 .237 Contra Costa Wildcat Canyon Park, Alvarado Unit. Comment
  UC2028514  Spartium junceum Barbara Ertter 1996-11-24 15419 Contra Costa West side of Mount Diablo, upstream from Pine Pond along Stage Road in Pine Canyon, floodplain at junction with Dusty Road Comment
  RSA760660  Spergula arvensis William J. Ferlatte, L. Maynard Moe 1970-4-27 1256 Contra Costa San Francisco Bay, Red Rock Island. Comment
  JEPS111532  Spergularia bocconi D. G. Kelch 2005-5-5 05 .216 Contra Costa Point Pinole - Giant Marsh 3 Comment
  UC1618227  Spergularia macrotheca Barbara Ertter 1990-10-14 9661 Contra Costa Point Isabel Regional Shoreline San Francisco Bay, El Cerrito (w shoreline, sw El Cerrito) Comment
  NY482309  Spergularia macrotheca var. longistyla B. J. Ertter 1989-4-5 8113 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton, near sea level Comment
  SD131825  Spergularia macrotheca var. longistyla Barbara Ertter, Jim Jokerst and Dave Magney 1989-4-5 8113 Contra Costa Alkali sink west and adjacent to Clifton Court Forebay. Comment
  CAS-BOT-BC390536  Spergularia media Lewis S. Rose 1941-3-17 41034 Contra Costa 3 mi. s. of Byron 6 Comment
  UCR263550  Spergularia rubra Barbara Ertter, D. H. Norris 1999-11-14 16852 Contra Costa San Francisco Bay Region, Black Diamond Mines Regional Preserve, south of parking area for Somersville townsite 223 Comment
  UC1555268  Stachys ajugoides var. rigida R. C. Stebbins 1988-5-25 Contra Costa Memory and Packrat trails Tilden Park, Tildne Nature Area Comment
  UC884274  Stachys ajugoides var. rigida Lewis S. Rose 1935-5-16 35172 Contra Costa Mt. Diablo Comment
  CDA33902  Stachys pycnantha Swan/Fonseca 2008-9-11 PDR# 1454523 Contra Costa Concord; Pine Creek 0 Comment
  UC2055617  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8035 Contra Costa SW slope Mt. Diablo. 1066 Comment
  SEINET9363840  Stachys rigida var. rigida Unknown 1979-4-29 27 Contra Costa Clayton, CA. Russleman Park Road off Marsh Creek Road, Concord Mt. Diablo Trail Ride Assoc. grounds; digger pine - oak woodland. Comment
  CAS-BOT-BC374778  Stebbinsoseris heterocarpa Alice Eastwood 1923-5-4 11714 Contra Costa Mt Diablo Comment
  UC71938  Stebbinsoseris heterocarpa J. Burtt Davy 1895-4-7 960 Contra Costa Antioch Comment
  UC651293  Stellaria media Ira L. Wiggins 1930-4-18 4598 Contra Costa n end Jersey Island Comment
  JEPS68979  Stellaria nitens Edward Lee 1935-3-29 1313 Contra Costa Nortonville Kirker Creek (s watershed of Kirker Creek) Comment
  UC692302  Stellaria nitens Mary L. Bowerman 1931-3-21 603 Contra Costa e end Fossil Ridge; Mount Diablo Comment
  UC692303  Stellaria nitens Mary L. Bowerman 1932-3-12 1115 Contra Costa Alamo Canyon Mount Diablo (50 ft above stream) 365 Comment
  CDA33818  Stellaria nitens D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .114 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  JEPS79320  Stephanomeria exigua subsp. coronaria Edward Lee with Annetta Carter 1935-8-17 1627 Contra Costa Antioch Comment
  UC1292668  Streptanthus albidus subsp. peramoenus A. R. Kruckeberg 1947-5-24 1449 Contra Costa above road 2 mi inside old North Entrance to Mt. Diablo State Park (not tollgate) Comment
  CAS-BOT-BC87097  Streptanthus glandulosus subsp. glandulosus John Thomas Howell 1942-5-24 16965 Contra Costa Near Deer Flat, Mount Diablo. Comment
  UC691257  Streptanthus glandulosus subsp. glandulosus Mary L. Bowerman 1935-4-22 2878 Contra Costa North Road 2 mi from entrance; Mount Diablo 237 Comment
  UCD116027  Streptanthus hispidus Botany 102 Student 1974-4-13 s.n. Contra Costa Marsh Creek Road, near trail Ride ASSO, north peak of Mt. Diablo. 762 Comment
  UC2028416  Stuckenia striata Barbara Ertter with Brad Olson, Dianne Lake, Lynne Hosley and A. Youngson 1991-10-20 10866 Contra Costa Dow Wetlands Preserve, just W of Antioch marina Comment
  CAS-BOT-BC422913  Stylomecon heterophylla Alice Eastwood 1914-3-14 3770 Contra Costa Byron Springs Comment
  JEPS51558  Stylomecon heterophylla W. L. Jepson 1918-6-3 7589 Contra Costa Donner Canyon Mt. Diablo; , Donner Canyon 685 Comment
  RSA135424  Stylomecon heterophylla Volney Rattan 1883-04 s.n. Contra Costa Martinez. Comment
  UC692176  Stylomecon heterophylla Mary L. Bowerman 1930-6-14 323 Contra Costa not far below summit Meridian Peak Mount Diablo; , not far below summit Meridian Peak Comment
  CAS-BOT-BC422909  Stylomecon heterophylla Mary L. Bowerman 1932-5-6 1410 Contra Costa Mount Diablo. Mitchell Canyon: West bank by floor of canyon. 243 Comment
  RSA66297  Stylomecon heterophylla Lincoln Constance, J. L. Morrison 1938-4-5 2193 Contra Costa NW base of Mount Diablo, 6 miles SE of Walnut Creek, Coast Ranges Comment
  UC1238003  Suaeda moquinii John H. Weiler 1961-4-9 6173 Contra Costa 3 mi s Byron (e side of road) Comment
  UC407387  Suaeda moquinii Ira L. Wiggins 1930-4-17 4585 Contra Costa Byron Hot Springs Comment
  LA204633  Symphoricarpos albus J. A. Ewan; 1936-5-3 9500 Contra Costa Wildcat Creek Comment
  UC1005878  Symphoricarpos albus N. Floy Bracelin 1944-4-30 2674 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  OBI25834  Symphoricarpos albus var. laevigatus John Osborne 1970-11-21 12 Contra Costa 3173 Somerset Dr., Lafayette 76 Comment
  UC28650  Symphoricarpos mollis Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC97701  Symphyotrichum chilense Walter Knight; Joanne Dean 1978-8-14 3140 Contra Costa Browns Island Comment
  CAS-BOT-BC97696  Symphyotrichum chilense Barrett Anderson 1987-7-23 3563 Contra Costa Building site on San Pablo Road at Garrity Creek, Pinole 45 Comment
  CAS-BOT-BC97698  Symphyotrichum chilense D. E. Breedlove 1969-10-18 16717 Contra Costa along the roadbank on Reliez Valley Road at the junction with Gloria Terrace; Lafayette Comment
  CAS-BOT-BC97699  Symphyotrichum chilense Elizabeth McClintock; Stephen Rae 1978-8-3 s.n. Contra Costa Suisun Bay, Antioch Comment
  CAS-BOT-BC99144  Symphyotrichum chilense Walter Knight 1965-9-7 1167 Contra Costa Growing in brackish water of San Joaquin River - antioch sand dunes Comment
  CDA33070  Symphyotrichum lentum D. G. Kelch 2010-10-5 10 .424 Contra Costa The Delta.; Antioch shoreline. West of Fulton shipyard. Comment
  CDA37132  Tamarix parviflora Wil Schaub 2012-4-19 PDR# 1641194 Contra Costa Lafayette; 3697 Happy Valley Road. 0 Comment
  CDA37133  Tamarix parviflora Wil Schaub 2012-4-19 PDR# 1641195 Contra Costa Lafayette; 3954 Las Arabis Drive. 0 Comment
  JEPS33734  Taraxia ovata Mrs. E. L. Mossman 1931-3-12 57 Contra Costa Wildcat Canyon Berkeley Hills 213 Comment
  UCD102393  Tauschia hartwegii Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 890 Comment
  UC1819074  Tetragonia tetragonoides Barbara Ertter, Drew Hansen 1995-3-28 13935 Contra Costa Chevron oil refinery in northwest Richmond off of Castro St., south of Wildcat Creek Comment
  UC2062659  Tetrapteron graciliflorum Barbara Ertter with Chris Thayer 2002-4-13 17829 Contra Costa North side of Mount Diablo. Comment
  UCD96763  Thalictrum fendleri var. polycarpum Margaret Siri 1974-5-12 39 Contra Costa East-west canyon off-shoot, east of the bottom of Rifle Range Road, Wildcat Canyon. Comment
  HSC101956  Thysanocarpus curvipes Nikolaus Gillen, Michelle Bihler 2014-3-20 8 Contra Costa Mount Diablo State Park. Back Creek Trail. 340 Comment
  UC11004  Thysanocarpus curvipes J. Burtt Davy 1895-4-7 885 Contra Costa Antioch Comment
  UC691059  Thysanocarpus curvipes Mary L. Bowerman 1932-4-27 1377 Contra Costa Oyster Ridge s face, canyon w of Riggs Canyon Mount Diablo; , s face Oyster Ridge, w of Riggs Canyon 297 Comment
  SEINET3166337  Thysanocarpus curvipes subsp. curvipes P. J. Alexander, C. D. Bailey 2009-3-30 970 Contra Costa Mount Diablo State Park, 0.4 miles NE of the summit of Mt. Diablo, SW side of the saddle between the main peak and North Peak, 8.7 miles ESE of central Walnut Creek. 908 Comment
  POM202804  Thysanocarpus curvipes var. curvipes L. S. Rose 1933-4-17 33096 Contra Costa Antioch Comment
  CAS-BOT-BC66959  Thysanocarpus laciniatus J. W. Congdon 1896-5-3 s.n. Contra Costa Mount Diablo. Comment
  UC10988  Thysanocarpus laciniatus W. H. Brewer 1862-5-17 1102 Contra Costa on dry hill n Mount Diablo; n of Mount Diablo Comment
  UC691139  Thysanocarpus laciniatus Mary L. Bowerman 1932-3-27 1138 Contra Costa Mount Diablo , below Mitchell Rock (below Mitchell Rock) Comment
  CAS-BOT-BC172933  Toxicodendron diversilobum D. E. Breedlove 1970-4-18 17442 Contra Costa At the north edge of Lafayette above Laurel Drive 243 Comment
  JEPS63917  Toxicodendron diversilobum W. L. Jepson 1894-9-7 13913 Contra Costa Bald Peak near Berkeley; Bald Peak Comment
  JEPS111695  Tragopogon porrifolius D. G. Kelch 2004-4-11 04 .74 Contra Costa Crockett - Crolona Heights Hillside above Rolf Drive. Lower Crolona heights 15 Comment
  UC2028405  Tragopogon porrifolius Barbara Ertter with Richard K. Brummitt 1998-5-16 16083 Contra Costa Lower Donner Canyon on north base of Mount Diablo, near Donner Cabin site Comment
  SEINET13948212 Image available Trichostema lanceolatum Lewis S. Rose 1953-1 53095 Contra Costa Mt. Diablo, W slope; 1600 ft alt. 488 Comment
  JEPS112044  Trientalis latifolia A. G. Murdock 2004-4-30 264 Contra Costa Vaca Canyon 165 Comment
  UC692673  Trifolium albopurpureum var. albopurpureum Mary L. Bowerman 1933-4-15 1858 Contra Costa s Arroyo del Cerro (canyon) Comment
  UC692682  Trifolium albopurpureum var. albopurpureum Mary L. Bowerman 1933-4-26 1922 Contra Costa ridge ese the peak (s face); Mt. Diablo, North Peak Comment
  UC1795831  Trifolium albopurpureum var. albopurpureum Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14588 Contra Costa North Peak of Mt. Diablo; open rocky flats. 1097 Comment
  UC16500  Trifolium albopurpureum var. dichotomum W. H. Brewer 1862-5-16 1114 Contra Costa n Kirker's Pass Comment
  UC2028215  Trifolium albopurpureum var. dichotomum Barbara Ertter with Richard K. Brummitt 1998-5-13 16131 Contra Costa Summit Road on Mount Diablo, base of rock outcrop/roadcut above Juniper Camp. Comment
  JEPS107124  Trifolium albopurpureum var. olivaceum Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14225 Contra Costa Mt. Diablo southeast of Walnut Creek, serpentine knoll ca 1/2 air-mile north of Curry Point. 487 Comment
  UC631264  Trifolium albopurpureum var. olivaceum Mrs. Brandegee May 1907 Contra Costa Antioch Comment
  UC630759  Trifolium albopurpureum var. olivaceum P. B. Kennedy 1925-4-26 Contra Costa above old rd to reservoir; Mt. Diablo Comment
  UC2028082  Trifolium bifidum Barbara Ertter, Tony Morosco 1998-4-12 15987 Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  UC1818894  Trifolium bifidum var. bifidum Barbara Ertter, Mary Bowerman et al. 1995-5-7 14066 Contra Costa Three-Springs Creek, small serpentine patch at road junction, Comment
  UC55887  Trifolium bifidum var. decipiens H. L. Mason 1901-4-5 1735 Contra Costa Mt. Diablo 670 Comment
  UC2070457  Trifolium bifidum var. decipiens Barbara Ertter 2000-5-14 16998 Contra Costa Lower Donner Canyon on north side of Mount Diablo. Comment
  CDA25739  Trifolium ciliolatum D. G. Kelch 2008-4-12 8 .037 Contra Costa Mt Diablo. Mitchell Canyon. Along road looping north of main Mitchell Canyon Rd. Comment
  UC16457  Trifolium ciliolatum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  JEPS65716  Trifolium depauperatum var. amplectens Edw. L. Greene 1889-3-23 Contra Costa Byron Comment
  UC338058  Trifolium depauperatum var. amplectens Edw. L. Greene 1889-3-23 Contra Costa Byron Comment
  UCSC010986  Trifolium depauperatum var. laciniatum R. Morgan 1996-4-2 2852 Contra Costa NE side of Byron Hwy (07) just N or Byron Hot Springs Rd Comment
  UCSC011139  Trifolium depauperatum var. laciniatum Randy Morgan 1999-5-30 3509 Contra Costa Byron, Seed originally from Armstrong Road Comment
  UC165577  Trifolium depauperatum var. truncatum J. Burtt Davy 1895-1 938 Contra Costa Antioch Comment
  UC555354  Trifolium depauperatum var. truncatum H. L. Mason 1929-4-25 5208 Contra Costa Marsh Creek Rd Comment
  UC692647  Trifolium depauperatum var. truncatum Mary L. Bowerman 1932-3-23 1125 Contra Costa betw Monument and Concord (Oak Grove School junction); Mount Diablo Comment
  UC2028081  Trifolium depauperatum var. truncatum Barbara Ertter, Tony Morosco 1998-4-12 15988 Contra Costa Base of Mount Olympia on north side of Mount Diablo, open flat below quarry NE of Olympia Trail. Comment
  UC2028948  Trifolium depauperatum var. truncatum Barbara Ertter 2003-4-9 18143 Contra Costa Shell Ridge Open Space on west base of Mount Diablo, Upper Buck Trail on SW side of Deer Hill. Comment
  JEPS100102  Trifolium dubium G. Smick 2003-5-8 GAS 178 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC16539  Trifolium fucatum J. Burtt Davy 1900-3-24 6532 Contra Costa Stege Comment
  UC555454  Trifolium fucatum H. L. Mason 1929-3-31 5143 Contra Costa Briones Valley Comment
  UC165608  Trifolium gracilentum J. Burtt Davy 1895-1 926 Contra Costa Antioch Comment
  UC692683  Trifolium gracilentum Mary L. Bowerman 1933-5-9 2046 Contra Costa Stage Rd Mount Diablo 853 Comment
  CDA23566  Trifolium hirtum D. G. Kelch, D. A. Weinstein 2008-4-2 08 .032-b Contra Costa Carqinez Strait; E Richmond. Hilltop Rd. Chevy s Hill. Comment
  CDA29061  Trifolium microcephalum D. G. Kelch 2006-5-7 6 .149 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  CDA29541  Trifolium microcephalum D. G. Kelch, Troy MacGregor 2009-5-1 9 .271 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  UC692254  Trifolium microdon Mary L. Bowerman 1935-5-1 2933 Contra Costa 2 mi from entrance (West Road (=North Road)); Mount Diablo, West Road (=North Road) 182 Comment
  UC692640  Trifolium obtusiflorum Mary L. Bowerman 1938-6-14 3678 Contra Costa Maple Spring Mount Diablo Comment
  UC2028985  Trifolium oliganthum Barbara Ertter 2000-5-14 17010 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing. Comment
  CAS-BOT-BC26494  Trifolium triflorum M. K. Curran 1883-1-1 s.n. Contra Costa Near Mt. Diablo Comment
  JEPS70759  Trifolium willdenovii L. R. Heckard 1971-4-22 2493 Contra Costa e Pinole (rr grade near US Hwy 80 crossing) Comment
  UC1130132  Trifolium willdenovii C. M. Belshaw 1936-4-8 2071 Contra Costa 2.25 mi e Clayton; Mt. Diablo quad 381 Comment
  UC692649  Trifolium willdenovii Mary L. Bowerman 1931-5-7 813 Contra Costa near saddle (ne slope, Meridian Peak); Mount Diablo 914 Comment
  JEPS37726  Trifolium wormskioldii W. L. Jepson 1922-5-26 9671 Contra Costa North Berkeley Hills Comment
  JEPS112458  Triglochin striata D. G. Kelch 2003-8-13 03 .116 Contra Costa Martinez Marsh 0 Comment
  UCD139902  Trillium chloropetalum Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College Campus. Comment
  UC367060  Trillium chloropetalum J. G. Lemmon April, 1878 Contra Costa Mt. Diablo and Oakland Hills Comment
  UC13818  Trillium ovatum E. L. Drew 1888-2-22 Contra Costa Moraga Valley Comment
  SEINET10458812  Triodanis biflora Joseph W. Congdon 1896-5-30 Congdon s.n. Contra Costa Mount Diablo Comment
  UCR139223  Triphysaria eriantha Joseph A. Ewan 1934-4-8 8762 Contra Costa San Francisco Bay Region, Head of Hog Canyon, S slope of Mount Diablo 640 Comment
  UC1301191  Triphysaria eriantha subsp. eriantha Helen K. Sharsmith 1963-4-7 5288 Contra Costa e side Kirker Pass road w Antioch (San Francisco Bay Region); , Kirker Pass Road 152 Comment
  UC1586061  Triphysaria eriantha subsp. eriantha Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8125 Contra Costa ca 15 air mi sw Stockton (se Contra Costa County); adjacent to Clifton Court Forebay 0 Comment
  UC650592  Triphysaria eriantha subsp. eriantha Ira L. Wiggins 1930-4-17 4571 Contra Costa 1/4 mi s Byron Comment
  JEPS23260  Triphysaria pusilla G. Thomas Robbins 1959-4-26 4004 Contra Costa about 1/4 mi n San Pablo Oil Tank Farm (open slope about 1 mi ne of Giant) 15 Comment
  UC1861821  Triphysaria pusilla Barbara Ertter, Lisa Schultheis 1995-4-27 14002 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; at end of Arbolado Dr. 121 Comment
  CDA41895  Triphysaria versicolor subsp. faucibarbata D. G. Kelch 2005-5-5 5 .206 Contra Costa Carquinez Strait Region; Point Pinole - Giant Marsh. Giant Salt Marsh. Comment
  UCD36927  Trisetum canescens Beecher Crampton 1956-5-14 3423 Contra Costa 2 miles west of Martinez, on road to Crockett. Comment
  UC2070608  Trisetum canescens Barbara Ertter with Debra Trock 2005-6-25 18609 Contra Costa North end Redwood Regional Park, Stream Trail along Redwood Creek. Comment
  UC691989  Triteleia hyacinthina Mary L. Bowerman 1938-6-3 3651 Contra Costa Rock City Mount Diablo (gentle n-facing slope) 518 Comment
  JEPS100058  Triteleia laxa G. Smick 2003-4-10 GAS 136 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC130929  Triteleia laxa Katharine Brandegee 1909-4-24 Contra Costa Antioch Comment
  CAS-BOT-BC526327  Triteleia laxa Barrett Anderson 1987-4-30 3501 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road 125 Comment
  RSA760668  Triteleia laxa William J. Ferlatte, L. Maynard Moe 1970-4-27 1229 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UCR81450  Tropidocarpum capparideum Edward L. Greene 1888-3-25 s.n. Contra Costa Byron Springs 107 Comment
  CAS-BOT-BC67402  Tropidocarpum gracile Alice Eastwood 1914-3-14 3783 Contra Costa Byron Springs. Comment
  UC857585  Tropidocarpum gracile Lewis S. Rose 1940-4-30 40249 Contra Costa open fields five mi e Clayton; Marsh Creek 60 Comment
  CAS-BOT-BC67406  Tropidocarpum gracile H. L. Mason 1929-3-31 5152 Contra Costa Along San Joaquin River at Antioch. Comment
  CAS-BOT-BC67408  Tropidocarpum gracile Niall McCarten; V. I. Dains 1986-6-11 03231145 Contra Costa 500 yards west of Camino Diablo bridge over Kellogg Creek. Comment
  CAS-BOT-BC67409  Tropidocarpum gracile Charles Piper Smith 1922-4-15 3493 Contra Costa Antioch - S.P. depot - 0.5 mile east. Comment
  CAS-BOT-BC67412  Tropidocarpum gracile Mary L. Bowerman 1931-3-29 614 Contra Costa Mount Diablo. Riggs Canyon, at foot of Cave Point ridge. Comment
  CDA1419  Typha angustifolia D. G. Kelch, Andrew G. Murdock 2003-8-13 3 .105 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  CDA15285  Typha angustifolia G. F. Hrusa, D. Crowe, R. York 1998-7-17 14723 Contra Costa Sacramento Delta; Small colony and a few scattered inds. in bottom of now dry drainage/wash through disturbed grasslands at E end of Dow Chemical property. Site clearly wet earlier in season, but w/out standing water at this time. Comment
  UC1795648  Ulmus minor Barbara Ertter, Rich Rabeler 1994-6-18 12837 Contra Costa Pt. Pinole Regional Shoreline at north end of Richmond; northeast corner of park, near jct. Marsh Trail & Cook's Point Trail. Comment
  UC2070596  Ulmus minor Barbara Ertter with Chris Thayer 2002-4-13 17826 Contra Costa North side of Mount Diablo, on north face of Mount Olympia. Comment
  UC2028237  Ulmus pumila Barbara Ertter, Tony Morosco 1998-9-18 16434 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, above sand quarry [subsequently developed] on south side of Ygnacio Valley Road. Comment
  UC1073383  Umbellularia californica George B. Rossbach 1955-2-20 277 Contra Costa ne of Oakland Comment
  UC691943  Umbellularia californica Mary L. Bowerman 1930-8-31 453 a Contra Costa Mount Diablo, Sloan Road e of the Sloan place (Inner Black Hills) Mount Diablo Comment
  CAS-BOT-BC91091  Umbellularia californica H. E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek. Comment
  JEPS36205  Uropappus lindleyi W. L. Jepson 1922-5-23 9652 Contra Costa Mt. Diablo Comment
  JEPS75559  Uropappus lindleyi P. F. Yorks 1974-5-10 156 Contra Costa ca 1.6 km from Bear Creek Road on Hampton Road in Hampton Road Natural Reserve (n of Briones Reservoir) 180 Comment
  CAS-BOT-BC381824  Uropappus lindleyi Paul F. Covel 1938-5-8 9 Contra Costa Mt. Diablo - So. slope Comment
  CAS-BOT-BC344883  Urtica Peter Rubtzoff 1968-9-18 5963 Contra Costa North Gate Road, ca. 5 miles northwest of Mt. Diablo State Park north entrance. Comment
  UCR254746  Urtica dioica Peter Rubtzoff 1968-9-18 5963 Contra Costa North Gate Road, c. 5 miles NW of Mt. Diablo State Park north entrance 58 Comment
  UC2028520  Urtica urens Barbara Ertter 1997-1-5 15438 Contra Costa Lime Ridge Open Space on northwest side of Mount Diablo, section on north side of Ygnacio Valley Road. Comment
  UC2028528  Urtica urens Barbara Ertter 1998-1-4 15887 Contra Costa South end Diablo Foothills Regional Park southeast of Walnut Creek, Alamo Trail near junction with Hanging Valley Trail. Comment
  SBBG5572  Vaccinium ovatum J. M. Tucker 1946-3-14 1376 Contra Costa 150 yards S of summit of Redwood Peak Comment
  UC2070533  Veronica americana Barbara Ertter with Dan Norris 2000-12-3 17555 Contra Costa West side Mount Diablo, Maple Spring on North Gate Road just south of Angel Kerley Road junction. Comment
  JEPS18890  Veronica peregrina subsp. xalapensis Rimo Bacigalupi with G. Thomas Robbins 1956-3-26 5524 Contra Costa 1.2 mi n of junction with Marsh Creek Road ( just n of Briones Valley, along the Deer Valley Road, in territory just s of Antioch,); Deer Valley Road 76 Comment
  JEPS99479  Veronica persica Mary Bowerman 1978-4-10 Contra Costa Mount Diablo. Morgan Territory Rd. at Oak Hill Lane. Comment
  UC1050160  Viburnum cylindricum N. Floy Bracelin 1943-10-24 2368 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050168  Viburnum japonicum N. Floy Bracelin 1944-4-23 2377 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1051053  Viburnum japonicum N. Floy Bracelin 1942-10-4 2334 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1005836  Viburnum suspensum N. Floy Bracelin 1945-5-27 2852 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050363  Viburnum trilobum N. Floy Bracelin 1943-7-25 2187 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC2070474  Vicia americana Barbara Ertter 2003-3-28 18137 Contra Costa Round Valley Regional Preserve, mid Hardy Canyon along High Creek. Comment
  UC2070475  Vicia americana Barbara Ertter with Linda Vorobik 2002-4-6 17825 Contra Costa South side of Mount Diablo, ridge east of Curry Point trailhead. Comment
  UC2028140  Vicia americana subsp. americana Barbara Ertter 1998-4-4 15975 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, south of Bramhill Pond. Comment
  UC74935  Vicia americana var. americana unknown 1903-4-27 2793 Contra Costa Byron Comment
  UC16943  Vicia americana var. americana H. P. Chandler 1900-3-17 Contra Costa Wildcat Canyon; Berkeley Hills Comment
  CDA28800  Vicia benghalensis D. G. Kelch, Jessica Kolman 2009-5-29 9 .31 Contra Costa Carquinez Strait; Pinole Valley Park, near ridgetop. Comment
  JEPS77007  Vicia gigantea Robert M. Lloyd 1963-3-17 2135 Contra Costa 0.5 mi e intersection of Grizzly Peak Road and Skyline Drive (on Skyline Drive (across from 7090 Skyline), Huckleberry trail); Huckleberry trail Comment
  UC1555380  Vicia sativa Jerry Powell 1988-5-18 1534 Contra Costa Point Molate Richmond (w Richmond) Comment
  UC1300884  Vicia sativa subsp. nigra Helen K. Sharsmith 1962-4-18 4958 Contra Costa Reliez Valley Road; San Francisco Bay Region 152 Comment
  CDA4394  Vicia sativa subsp. sativa D. G. Kelch, A. G. Murdock 2005-3-11 5 .068 Contra Costa Carquinez Strait Region; Chevy s Hill. Comment
  UC2027811  Vicia sativa subsp. sativa Barbara Ertter with Holly Forbes 1997-4-20 15546 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  UC2028151  Vicia sativa subsp. sativa Barbara Ertter 1998-4-4 15961 Contra Costa Shell Ridge Open Space northwest of Mount Diablo. Comment
  CDA15246  Vicia villosa subsp. varia G. F. Hrusa, D. Crowe 1998-5-8 14377 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  CDA15257  Vicia villosa subsp. villosa G. F. Hrusa, D. Crowe 1998-5-8 14388 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  JEPS50459  Viola pedunculata W. L. Jepson 1923-3-11 9849 Contra Costa Mount Diablo, half-way up, s slope Mount Diablo 685 Comment
  UC422922  Viola purpurea subsp. quercetorum E. W. Hicks 1917-3-25 109 Contra Costa w shoulder of Mount Diablo 762 Comment
  UC692605  Viola purpurea subsp. quercetorum Mary L. Bowerman 1933-5-9 2044 Contra Costa Mount Diablo, Stage Road Mount Diablo 853 Comment
  POM193033  Viola purpurea subsp. quercetorum E. W. Hicks 1917-3-25 109 Contra Costa Wet shoulder of Mt Diablo. Comment
  UC1789166  Vitis Barbara Ertter 1995-4-27 14020 Contra Costa walkway along ditch between Valley Vista and Arbolado Park, Walnut Creek, ca 300 ft; naturalized on concrete ditchbank, twigs red, flowers green, fragrant. Comment